the 7 last plagues

These seven last plagues are the wrath of God, which shall come in one day for the wicked who receive the mark of the beast. A day in prophecy is one year in fulfillment.

Revelation 18:8 - Therefore shall her plagues come in one day, death, and mourning, and famine; and she shall be utterly burned with fire: for strong [is] the Lord God who judgeth her. 

In prophecy, 1 day in fulfillment is 1 literal year.

Numbers 14:34 - After the number of the days in which ye searched the land, [even] forty days, each day for a year, shall ye bear your iniquities, [even] forty years, and ye shall know my breach of promise. 

Ezekiel 4:6 - I have appointed thee each day for a year. 

Also, apart from one day, there is also one hour.
So, when you do the mathematics of one hour we have...
1 day = 1 year
1 year = 360 days
1 day = 24 hours
360 / 24 hours = 15 days

So, many people ask the question, what is a plague and why do people in time past received plagues? Let us dig into the concordance to see the real meaning of the plague.
Plague - H5063 (negeph) - an infliction (of disease)
-      H5061 (nega’) - a blow (an infliction)
-      G4127 - plege <play-gay> - a stroke (calamity)
-      H5062 - maggephah - a pestilence

So, by these definitions, we can tell that a plague is an infliction, a stroke or a pestilence. Next question is who are affected by the plagues?

Looking at Bible history, we can find how the plagues fell upon a certain group of people or kingdom. The most known is Pharaoh of Egypt who did not listen to Moses and Aaron who were the messengers of God in His great mission to lead His people out of Egypt. Because he did not obey the words of the Lord through His servants, great judgment from God fell on Pharaoh’s kingdom. - Exodus 7:4. During this time, Egypt was plagued, and the whole kingdom was subdued. They were powerless. All Pharaoh could do to stop each plague was to beg Moses and Aaron to plead God to stop the plagues.

In the last days too, there is a prophesied plague, 7 in number which denotes perfection or completeness. The intensity of the 7 plagues is unique from among the plagues that ever fell upon the wicked since creation. John the revelator said that this is the wine of God’s wrath poured out without mixture. No amount of human effort can counteract this judgment of God for this is called the great day of God Almighty. This is going to be a time of trouble that never was since there was a nation. - Daniel 12:1. If during the plagues in Egypt Pharaoh was still able to persuade Moses to ask God to stop the plagues, this great and terrible day that is coming, no earthly ruler can plead anybody’s help to stop the wrath of God because probation on the world is over with, it is finished. No more second chance. We are the voice of Moses and Aaron, or the Spirit of Elijah calling all and warning all to repent before it is too late and probation closes.

What is the purpose for the 7 last plagues?

To smite the nations/judgment/vengeance of God
Going back to the history of Pharaoh in Egypt, God smote them with plagues which are God’s great judgment against him and his kingdom for refusing to listen to God. It killed their cattle, removed their ability to eat and drink, and stank their land. So the last 7 plagues that will fall on earth when probation closes are going to be the day of God’s terrible wrath and judgment against those who have refused to hear His voice. This wrath is so powerful for it cometh from the mouth of God Himself. As in the day of Creation, God spoke, it came to pass and as in the day of God’s wrath, He says, it will happen.

Revelation 19:15 - And out of his mouth goeth a sharp sword, that with it he should smite the nations: and he shall rule them with a rod of iron: and he treadeth the winepress of the fierceness and wrath of Almighty God. 

Revelation 11:6 - These have power to shut heaven, that it rain not in the days of their prophecy: and have power over waters to turn them to blood, and to smite the earth with all plagues, as often as they will. 

Romans 2:5 But after thy hardness and impenitent heart treasurest up unto thyself wrath against the day of wrath and revelation of the righteous judgment of God;

Luke 21:22-23 For these be the days of vengeance, that all things which are written may be fulfilled. But woe unto them that are with child, and to them that give suck, in those days! for there shall be great distress in the land, and wrath upon this people.

Who and what is the sword that came out of His mouth?
Ephesians 6:17 - And take the helmet of salvation, and the sword of the Spirit, which is the word of God: 
John 1:1, 14 - In the beginning was the Word, and the Word was with God, and the Word was God. And the Word was made flesh, and dwelt among us, (and we beheld his glory, the glory as of the only begotten of the Father,) full of grace and truth. 
Revelation 19:13 - And he [was] clothed with a vesture dipped in blood: and his name is called The Word of God.

The sword is the word of God, Jesus Christ. When He speaks, it comes to pass, so the plagues is the wrath of God Almighty that came from His mouth as He spoke and it comes to pass. Jesus is the stone that will smite the nation in the form of plagues as like the stone that smote the ten toes of the great image that Nebuchadnezzar set up in the plain of Dura.

Daniel  2:34 - Thou sawest till that a stone was cut out without hands, which smote the image upon his feet [that were] of iron and clay, and brake them to pieces. 

As in the days of Pharaoh in Egypt and the plagues that hit his kingdom, the 7 last plagues are the great judgment of God for the 10 toes who received the mark of the beast when probation was still open. The question is, how intense is this day?

Revelation 14:10-11 - The same shall drink of the wine of the wrath of God, which is poured out without mixture into the cup of his indignation; and he shall be tormented with fire and brimstone in the presence of the holy angels, and in the presence of the Lamb:  And the smoke of their torment ascendeth up for ever and ever: and they have no rest day nor night, who worship the beast and his image, and whosoever receiveth the mark of his name.     
This wrath of God will be without mixture and so there will be no amount of power can counteract this major event.

Who will receive the 7 last plagues?
Revelation 14:9-11 - And the third angel followed them, saying with a loud voice, If any man worship the beast and his image, and receive [his] mark in his forehead, or in his hand,  The same shall drink of the wine of the wrath of God, which is poured out without mixture into the cup of his indignation; and he shall be tormented with fire and brimstone in the presence of the holy angels, and in the presence of the Lamb:  And the smoke of their torment ascendeth up for ever and ever: and they have no rest day nor night, who worship the beast and his image, and whosoever receiveth the mark of his name. 

The people who will receive the plagues are those who worship the beast and his image and receive the mark in his forehead or in his hand. Whatever they did during the enforcement of Sunday law period will happen to them during the plagues. Two classes will be formed, those who worship the beast and those who worship God. All who worship God will die in the enforcement of the Mark of the Beast by law, but the 144,000 will be sealed for the time of trouble (daniel 12:1) in the seven last plagues. The plagues are the direct result of what happened during the period of their enforcement of the mark of the beast, which is the Vatican's Sunday laws. When they punish and kill us commandment-keeping Christians, then the Lord of host will render back to them greater for like never before through the seven last plagues. What was done to the church of God will be done unto those who receive the Mark of the Beast.

Obadiah 1:15 - For the day of the LORD [is] near upon all the heathen: as thou hast done, it shall be done unto thee: thy reward shall return upon thine own head. 
Below are the plagues in summarized tabular form:

Revelation 18:3-19 - For all nations have drunk of the wine of the wrath of her fornication, and the kings of the earth have committed fornication with her, and the merchants of the earth are waxed rich through the abundance of her delicacies.  And I heard another voice from heaven, saying, Come out of her, my people, that ye be not partakers of her sins, and that ye receive not of her plagues.  For her sins have reached unto heaven, and God hath remembered her iniquities.  Reward her even as she rewarded you, and double unto her double according to her works: in the cup which she hath filled fill to her double.  How much she hath glorified herself, and lived deliciously, so much torment and sorrow give her: for she saith in her heart, I sit a queen, and am no widow, and shall see no sorrow.  Therefore shall her plagues come in one day, death, and mourning, and famine; and she shall be utterly burned with fire: for strong [is] the Lord God who judgeth her.  And the kings of the earth, who have committed fornication and lived deliciously with her, shall bewail her, and lament for her, when they shall see the smoke of her burning,  Standing afar off for the fear of her torment, saying, Alas, alas that great city Babylon, that mighty city! for in one hour is thy judgment come. And the merchants of the earth shall weep and mourn over her; for no man buyeth their merchandise any more:  The merchandise of gold, and silver, and precious stones, and of pearls, and fine linen, and purple, and silk, and scarlet, and all thyine wood, and all manner vessels of ivory, and all manner vessels of most precious wood, and of brass, and iron, and marble,  And cinnamon, and odours, and ointments, and frankincense, and wine, and oil, and fine flour, and wheat, and beasts, and sheep, and horses, and chariots, and slaves, and souls of men.  And the fruits that thy soul lusted after are departed from thee, and all things which were dainty and goodly are departed from thee, and thou shalt find them no more at all.  The merchants of these things, which were made rich by her, shall stand afar off for the fear of her torment, weeping and wailing,  And saying, Alas, alas, that great city, that was clothed in fine linen, and purple, and scarlet, and decked with gold, and precious stones, and pearls!  For in one hour so great riches is come to nought. And every shipmaster, and all the company in ships, and sailors, and as many as trade by sea, stood afar off,  And cried when they saw the smoke of her burning, saying, What [city is] like unto this great city!  And they cast dust on their heads, and cried, weeping and wailing, saying, Alas, alas, that great city, wherein were made rich all that had ships in the sea by reason of her costliness! for in one hour is she made desolate.   

For those who believe and know as we do that Ellen G. White is a prophetess of God for the last days:
Then I saw Jesus lay off his priestly attire, and clothe himself with his most kingly robes—upon his head were many crowns, a crown within a crown—and surrounded by the angelic host, he left heaven. The plagues were falling upon the inhabitants of the earth. Some were denouncing God, and cursing him. Others rushed to the people of God, and begged to be taught how they should escape the judgments of God. But the saints had nothing for them. The last tear for sinners had been shed, the last agonizing prayer offered, the last burden had been borne.  - 1SG 199.1

What happens to earth:
·      mountains moved out of their places
·      forces of nature out of order, 4 winds released (tornadoes, hailstorm, typhoon, volcano, earthquake, tsunami, whirlwind)

"I then beheld the earth. The wicked were dead, and their bodies were lying upon the face of the earth. The inhabitants of earth had suffered the wrath of God in the seven last plagues. They had gnawed their tongues for pain and had cursed God. The false shepherds were signal objects of Jehovah’s wrath. Their eyes had consumed away in their holes, and their tongues in their mouths, while they stood upon their feet. After the saints were delivered by the voice of God, the rage of the wicked multitude was turned upon each other. The earth seemed to be deluged with blood, and dead bodies were from one end of the earth to the other." {1SG 211.1 }

Then I saw that Jesus would not leave the Most Holy Place, until every case was decided either for salvation or destruction: and that the wrath of God could not come until Jesus had finished his work in the Most Holy Place—laid off his priestly attire and clothed himself with the garments of vengeance. Then Jesus will step out from between the Father and man, and God will keep silent no longer; but pour out his wrath on those who have rejected his truth. I saw that the anger of the nations, the wrath of God, and the time to judge the dead, were separate events, one following the other. I saw that Michael had not stood up, and that the time of trouble, such as never was, had not yet commenced. The nations are now getting angry, but when our High Priest has finished his work in the Sanctuary, he will stand up, put on the garments of vengeance, and then the seven last plagues will be poured out. I saw that the four angels would hold the four winds until Jesus’ work was done in the Sanctuary, and then will come the seven last plagues. { RH August 1, 1849, par. 14 }

God's anger will not cease until he has caused the land of light to drink the dregs of the cup of his fury, and until he has rewarded unto Babylon double. Reward her even as she rewarded you, double unto her double according to her works: in the cup which she hath filled, fill to her double. GC1858 ch 33

Is there any universal rising of religion-political power during the plagues?
The beast cannot rise in power during the 7 plagues because this is a time of judgment. The test is done. All have decided. All earthly kingdoms are now under the power of Jesus Christ the King. When probation closes, Jesus is pouring out His vengeance and wrath to all the wicked and this wrath is without mixture, who can be able to stand? Only the 144,000 can stand during this time. Revelation 7. It is SIMPLY impossible for them to gain victory during this time, no matter how much they may try to make war to kill the saints, they utterly fail. Their time to attain unity is today and they are building up to that one mind to eventually kill all who will not worship this Sunday law mark of the beast antichrist system that is brewing up and gaining strength in the land. In fact, during the plague, they will be found doing this in Revelation 18:10-19...

Revelation 18:10-19: Standing afar off for the fear of her torment, saying, Alas, alas that great city Babylon, that mighty city! for in one hour is thy judgment come. And the merchants of the earth shall weep and mourn over her; for no man buyeth their merchandise any more:  The merchandise of gold, and silver, and precious stones, and of pearls, and fine linen, and purple, and silk, and scarlet, and all thyine wood, and all manner vessels of ivory, and all manner vessels of most precious wood, and of brass, and iron, and marble,  And cinnamon, and odours, and ointments, and frankincense, and wine, and oil, and fine flour, and wheat, and beasts, and sheep, and horses, and chariots, and slaves, and souls of men.  And the fruits that thy soul lusted after are departed from thee, and all things which were dainty and goodly are departed from thee, and thou shalt find them no more at all.  The merchants of these things, which were made rich by her, shall stand afar off for the fear of her torment, weeping and wailing,  And saying, Alas, alas, that great city, that was clothed in fine linen, and purple, and scarlet, and decked with gold, and precious stones, and pearls!  For in one hour so great riches is come to nought. And every shipmaster, and all the company in ships, and sailors, and as many as trade by sea, stood afar off,  And cried when they saw the smoke of her burning, saying, What [city is] like unto this great city!  And they cast dust on their heads, and cried, weeping and wailing, saying, Alas, alas, that great city, wherein were made rich all that had ships in the sea by reason of her costliness! for in one hour is she made desolate. 

When will the beast be made desolate where her supporters will stand afar off and will no longer support her?
Revelation 16:12 - And the sixth angel poured out his vial upon the great river Euphrates; and the water thereof was dried up, that the way of the kings of the east might be prepared. 

Revelation 17:15 - And he saith unto me, The waters which thou sawest, where the whore sitteth, are peoples, and multitudes, and nations, and tongues. 
Water = tongues/nations/people
Dried up = no more people

What does the Bible say to describe what this time is:
Revelation 18:6-8, 15 Reward her even as she rewarded you, and double unto her double according to her works: in the cup which she hath filled fill to her double.  How much she hath glorified herself, and lived deliciously, so much torment and sorrow give her: for she saith in her heart, I sit a queen, and am no widow, and shall see no sorrow.  Therefore shall her plagues come in one day, death, and mourning, and famine; and she shall be utterly burned with fire: for strong [is] the Lord God who judgeth her.  The merchants of these things, which were made rich by her, shall stand afar off for the fear of her torment, weeping and wailing, And they cast dust on their heads, and cried, weeping and wailing, saying, Alas, alas, that great city, wherein were made rich all that had ships in the sea by reason of her costliness! for in one hour is she made desolate. It will not be a time of party and marriage, but of desolation for all of what the wicked had done before the plagues.

She is made a desolation in 1 hour. She is not allowed to stand up in full force, with 1 mind, with one voice of unity, as the 8th beast who is being sent off into perdition and put into the graves and into the side of the pit with Satan.

Joel 1:10 The field is wasted, the land mourneth; for the corn is wasted: the new wine is dried up, the oil languisheth.
1:11 Be ye ashamed, O ye husbandmen; howl, O ye vinedressers, for the wheat and for the barley; because the harvest of the field is perished.
1:12 The vine is dried up, and the fig tree languisheth; the pomegranate tree, the palm tree also, and the apple tree, [even] all the trees of the field, are withered: because joy is withered away from the sons of men. 1:17 The seed is rotten under their clods, the garners are laid desolate, the barns are broken down; for the corn is withered.
1:18 How do the beasts groan! the herds of cattle are perplexed, because they have no pasture; yea, the flocks of sheep are made desolate.
1:19 O LORD, to thee will I cry: for the fire hath devoured the pastures of the wilderness, and the flame hath burned all the trees of the field.
1:20 The beasts of the field cry also unto thee: for the rivers of waters are dried up, and the fire hath devoured the pastures of the wilderness.

Amos 8:3 And the songs of the temple shall be howlings in that day, saith the Lord GOD: [there shall be] many dead bodies in every place; they shall cast [them] forth with silence.

Revelation 16:11, 19 - And blasphemed the God of heaven because of their pains and their sores, and repented not of their deeds. 

Revelation 14:11 - And the smoke of their torment ascendeth up for ever and ever: and they have no rest day nor night, who worship the beast and his image, and whosoever receiveth the mark of his name.

Zechariah 14:12-13 - And this shall be the plague wherewith the LORD will smite all the people that have fought against Jerusalem; Their flesh shall consume away while they stand upon their feet, and their eyes shall consume away in their holes, and their tongue shall consume away in their mouth.  And it shall come to pass in that day, [that] a great tumult from the LORD shall be among them; and they shall lay hold every one on the hand of his neighbour, and his hand shall rise up against the hand of his neighbour. 

Psalms  37:38-39 - But the transgressors shall be destroyed together: the end of the wicked shall be cut off. But the salvation of the righteous [is] of the LORD: [he is] their strength in the time of trouble. 

Jeremiah 25:29-33 For, lo, I begin to bring evil on the city which is called by my name, and should ye be utterly unpunished? Ye shall not be unpunished: for I will call for a sword upon all the inhabitants of the earth, saith the LORD of hosts. Therefore prophesy thou against them all these words, and say unto them, The LORD shall roar from on high, and utter his voice from his holy habitation; he shall mightily roar upon his habitation; he shall give a shout, as they that tread [the grapes], against all the inhabitants of the earth. A noise shall come [even] to the ends of the earth; for the LORD hath a controversy with the nations, he will plead with all flesh; he will give them [that are] wicked to the sword, saith the LORD. Thus saith the LORD of hosts, Behold, evil shall go forth from nation to nation, and a great whirlwind shall be raised up from the coasts of the earth. And the slain of the LORD shall be at that day from [one] end of the earth even unto the [other] end of the earth: they shall not be lamented, neither gathered, nor buried; they shall be dung upon the ground.

Proverbs 1:27-28 - When your fear cometh as desolation, and your destruction cometh as a whirlwind; when distress and anguish cometh upon you. Then shall they call upon me, but I will not answer; they shall seek me early, but they shall not find me:

Jeremiah  30:23, 24 - Behold, the whirlwind of the LORD goeth forth with fury, a continuing whirlwind: it shall fall with pain upon the head of the wicked. The fierce anger of the LORD shall not return, until he have done [it], and until he have performed the intents of his heart: in the latter days ye shall consider it. 

Ezekiel  7:5-27 - Thus saith the Lord GOD; An evil, an only evil, behold, is come.  An end is come, the end is come: it watcheth for thee; behold, it is come.  The morning is come unto thee, O thou that dwellest in the land: the time is come, the day of trouble [is] near, and not the sounding again of the mountains.  Now will I shortly pour out my fury upon thee, and accomplish mine anger upon thee: and I will judge thee according to thy ways, and will recompense thee for all thine abominations.  And mine eye shall not spare, neither will I have pity: I will recompense thee according to thy ways and thine abominations [that] are in the midst of thee; and ye shall know that I [am] the LORD that smiteth.  Behold the day, behold, it is come: the morning is gone forth; the rod hath blossomed, pride hath budded.  Violence is risen up into a rod of wickedness: none of them [shall remain], nor of their multitude, nor of any of theirs: neither [shall there be] wailing for them.  The time is come, the day draweth near: let not the buyer rejoice, nor the seller mourn: for wrath [is] upon all the multitude thereof.  For the seller shall not return to that which is sold, although they were yet alive: for the vision [is] touching the whole multitude thereof, [which] shall not return; neither shall any strengthen himself in the iniquity of his life.  They have blown the trumpet, even to make all ready; but none goeth to the battle: for my wrath [is] upon all the multitude thereof.  The sword [is] without, and the pestilence and the famine within: he that [is] in the field shall die with the sword; and he that [is] in the city, famine and pestilence shall devour him.  But they that escape of them shall escape, and shall be on the mountains like doves of the valleys, all of them mourning, every one for his iniquity.  All hands shall be feeble, and all knees shall be weak [as] water.  They shall also gird [themselves] with sackcloth, and horror shall cover them; and shame [shall be] upon all faces, and baldness upon all their heads.  They shall cast their silver in the streets, and their gold shall be removed: their silver and their gold shall not be able to deliver them in the day of the wrath of the LORD: they shall not satisfy their souls, neither fill their bowels: because it is the stumblingblock of their iniquity.  As for the beauty of his ornament, he set it in majesty: but they made the images of their abominations [and] of their detestable things therein: therefore have I set it far from them.  And I will give it into the hands of the strangers for a prey, and to the wicked of the earth for a spoil; and they shall pollute it.  My face will I turn also from them, and they shall pollute my secret [place]: for the robbers shall enter into it, and defile it.  Make a chain: for the land is full of bloody crimes, and the city is full of violence.  Wherefore I will bring the worst of the heathen, and they shall possess their houses: I will also make the pomp of the strong to cease; and their holy places shall be defiled.  Destruction cometh; and they shall seek peace, and [there shall be] none.  Mischief shall come upon mischief, and rumour shall be upon rumour; then shall they seek a vision of the prophet; but the law shall perish from the priest, and counsel from the ancients.  The king shall mourn, and the prince shall be clothed with desolation, and the hands of the people of the land shall be troubled: I will do unto them after their way, and according to their deserts will I judge them; and they shall know that I [am] the LORD. 

Daniel  12:1 - And at that time shall Michael stand up, the great prince which standeth for the children of thy people: and there shall be a time of trouble, such as never was since there was a nation [even] to that same time: and at that time thy people shall be delivered, every one that shall be found written in the book. 

Job  21:30 - That the wicked is reserved to the day of destruction? they shall be brought forth to the day of wrath. 

Psalms  27:5 - For in the time of trouble he shall hide me in his pavilion: in the secret of his tabernacle shall he hide me; he shall set me up upon a rock. 

Isaiah 9:19 - Through the wrath of the LORD of hosts is the land darkened, and the people shall be as the fuel of the fire: no man shall spare his brother.

Isaiah 13:9 - Behold, the day of the LORD cometh, cruel both with wrath and fierce anger, to lay the land desolate: and he shall destroy the sinners thereof out of it.

Job 38:23 Which I have reserved against the time of trouble, against the day of battle and war?

Zephaniah  1:14-18 - 1:14 The great day of the LORD [is] near, [it is] near, and hasteth greatly, [even] the voice of the day of the LORD: the mighty man shall cry there bitterly. That day [is] a day of wrath, a day of trouble and distress, a day of wasteness and desolation, a day of darkness and gloominess, a day of clouds and thick darkness, A day of the trumpet and alarm against the fenced cities, and against the high towers. And I will bring distress upon men, that they shall walk like blind men, because they have sinned against the LORD: and their blood shall be poured out as dust, and their flesh as the dung. Neither their silver nor their gold shall be able to deliver them in the day of the LORD'S wrath; but the whole land shall be devoured by the fire of his jealousy: for he shall make even a speedy riddance of all them that dwell in the land.

Romans 2:5-6, 8-9 - But after thy hardness and impenitent heart treasurest up unto thyself wrath against the day of wrath and revelation of the righteous judgment of God; Who will render to every man according to his deeds:  2:8 But unto them that are contentious, and do not obey the truth, but obey unrighteousness, indignation and wrath,  Tribulation and anguish, upon every soul of man that doeth evil, of the Jew first, and also of the Gentile; 

Isaiah 34:2,8 For the indignation of the LORD [is] upon all nations, and [his] fury upon all their armies: he hath utterly destroyed them, he hath delivered them to the slaughter.  For [it is] the day of the LORD's vengeance, [and] the year of recompenses for the controversy of Zion.

Joel 2:2-11 - …for the day of the LORD cometh, for [it is] nigh at hand; A day of darkness and of gloominess, a day of clouds and of thick darkness, as the morning spread upon the mountains: a great people and a strong; there hath not been ever the like, neither shall be any more after it, [even] to the years of many generations.  A fire devoureth before them; and behind them a flame burneth: the land [is] as the garden of Eden before them, and behind them a desolate wilderness; yea, and nothing shall escape them. Before their face the people shall be much pained: all faces shall gather blackness. The earth shall quake before them; the heavens shall tremble: the sun and the moon shall be dark, and the stars shall withdraw their shining:  And the LORD shall utter his voice before his army: for his camp [is] very great: for [he is] strong that executeth his word: for the day of the LORD [is] great and very terrible; and who can abide it? 

Ezekiel 38:20-23 So that the fishes of the sea, and the fowls of the heaven, and the beasts of the field, and all creeping things that creep upon the earth, and all the men that [are] upon the face of the earth, shall shake at my presence, and the mountains shall be thrown down, and the steep places shall fall, and every wall shall fall to the ground.  And I will call for a sword against him throughout all my mountains, saith the Lord GOD: every man's sword shall be against his brother.  And I will plead against him with pestilence and with blood; and I will rain upon him, and upon his bands, and upon the many people that [are] with him, an overflowing rain, and great hailstones, fire, and brimstone.  Thus will I magnify myself, and sanctify myself; and I will be known in the eyes of many nations, and they shall know that I [am] the LORD. 

Malachi 4:5-6 - Behold, I will send you Elijah the prophet before the coming of the great and dreadful day of the LORD: And he shall turn the heart of the fathers to the children, and the heart of the children to their fathers, lest I come and smite the earth with a curse.

2 Peter 3:10, 12 - But the day of the Lord will come as a thief in the night; in the which the heavens shall pass away with a great noise, and the elements shall melt with fervent heat, the earth also and the works that are therein shall be burned up.  Looking for and hasting unto the coming of the day of God, wherein the heavens being on fire shall be dissolved, and the elements shall melt with fervent heat? 

Base on the verses above, the most common terms that describe the 7 last plagues are the following:
-      time of trouble
-      great and dreadful day
-      wasteness and desolation
-      righteous judgment of God
-      day of indignation and wrath
-      tribulation and anguish
-      day of destruction
-      day of darkness and gloominess
-      darkened land
-      fierce anger and fury
-      a day of trouble and distress
-      mourning, pain, torment and sorrow
-      feeble hands and weakened knees
-      horror
-      curse
-      battle and war
-      death, pestilence and famine
-      torment, weeping and wailing
-      wicked killing each other

Peace and safety come then the Time of Trouble happens
1 Thessalonians 5:2-3 - For yourselves know perfectly that the day of the Lord so cometh as a thief in the night.  For when they shall say, Peace and safety; then sudden destruction cometh upon them, as travail upon a woman with child; and they shall not escape. 

If it’s a fearful, troublous, painful, sorrowful time for the wicked. This is not a normal year for them where they can do anything to enjoy with. This is the year of wrath, suffering and destruction. This year is the time of trouble for the wicked. When they expect peace and safety, suddenly probation closes and their destruction starts.

What is one object that God will accomplish during the plagues?
Isaiah 60:14 The sons also of them that afflicted thee shall come bending unto thee; and all they that despised thee shall bow themselves down at the soles of thy feet; and they shall call thee, The city of the LORD, The Zion of the Holy One of Israel.

Isaiah 49:23 And kings shall be thy nursing fathers, and their queens thy nursing mothers: they shall bow down to thee with [their] face toward the earth, and lick up the dust of thy feet; and thou shalt know that I [am] the LORD: for they shall not be ashamed that wait for me.

Revelation 3:9 Behold, I will make them of the synagogue of Satan, which say they are Jews, and are not, but do lie; behold, I will make them to come and worship before thy feet, and to know that I have loved thee.

Because the wicked wanted the whole world to receive the mark, in the plagues, God will make sure that the wicked will bow down to the saints. What they did during sunday law will come right back at them, "double unto her double" of what she did.

When Will the 7 Last Plagues start to fall?
The wrath of God is His righteous judgments against those who received the Mark of the Beast. This gives us a clue as to when will plagues fall. It means the judgment will fall after the test is over with. God's principle is always "warning->test->face consequence".Until everyone has decided whether to worship God or the beast and his image, it is until then the judgment will fall. When Jesus stands up from Most Holy and leaves to go to the couryard, plagues can no longer be held back. Judgment starts right when He moves out of the Most Holy for the test is already over with. He will then pass in the Holy Place and exit into the courtyard to transfer the sins to Satan. His movement would look like this:

Isaiah 34:2,8 For the indignation of the LORD [is] upon all nations, and [his] fury upon all their armies: he hath utterly destroyed them, he hath delivered them to the slaughter.  For [it is] the day of the LORD's vengeance, [and] the year of recompenses for the controversy of Zion.

Daniel 12:1 And at that time shall Michael stand up, the great prince which standeth for the children of thy people: and there shall be a time of trouble, such as never was since there was a nation [even] to that same time: and at that time thy people shall be delivered, every one that shall be found written in the book.

For those who believe EGW is a prophet- What did she say regarding when plagues will fall?
Manuscript 1, June, 1857  
The Lord in judgment will at the close of time walk through the earth; the fearful plagues will begin to fall. Then those who have despised God's word, those who have lightly esteemed it, shall "wander from sea to sea, and from the north even to the east; they shall run to and fro to seek the word of the Lord and shall not find it" [Amos 8:12]. A famine is in the land for the hearing of the Word… they must hunger and thirst on in vain. Their thirst will never be quenched, no consolation can they get. Their cases are decided and eternally fixed. It is a fearful, awful time.

The nations are now getting angry, but when our High Priest has finished his work in the Sanctuary, he will stand up, put on the garments of vengeance, and then the seven last plagues will be poured out. I saw that the four angels would hold the four winds until Jesus’ work was done in the Sanctuary, and then will come the seven last plagues. { RH August 1, 1849, par. 14 }

As Jesus moved out of the Most Holy place, I heard the tinkling of the bells upon his garment, and as he left, a cloud of darkness covered the inhabitants of the earth. There was then no mediator between guilty man, and an offended God. While Jesus had been standing between God and guilty man, a restraint was upon the people; but when Jesus stepped out from between man and the Father, the restraint was removed, and Satan had the control of man. It was impossible for the plagues to be poured out while Jesus officiated in the Sanctuary; but as his work there is finished, as his intercession closes, there is nothing to stay the wrath of God, and it breaks with fury upon the shelterless head of the guilty sinner, who has slighted salvation, and hated reproof. The saints in that fearful time, after the close of Jesus’ mediation, were living in the sight of a holy God, without an intercessor. Every case was decided, every jewel numbered. Jesus tarried a moment in the outer apartment of the heavenly Sanctuary, and the sins which had been confessed while he was in the Most Holy place, he placed back upon the originator of sin, the Devil. He must suffer the punishment of these sins. { 1SG 198.1 }

The world is soon to be left by the angel of mercy and the seven last plagues are to be poured out....The storm is gathering. The bolts of God's wrath are soon to fall, and, when He shall begin to punish the transgressors, there will be no period of respite until the end. He shall come forth to punish the inhabitants of the world for their iniquity, and "the earth...shall disclose her blood, and shall no more cover her slain" [Isaiah 26:21]. Only those stand who are sanctified through the truth in the love of God. They will be hid with Christ in God until the desolation shall be overpast. Manuscript 122, August, 1899

There is a marked contrast between those who bear the seal of God and those who worship the beast and his image. The Lord's faithful servants will receive the bitterest persecution from false teachers, who will not hear the word of God, and who prepare stumbling blocks to put in the way of those who would hear. But God's people are not to fear. Satan cannot go beyond his limit. The Lord will be the defense of His people. He regards the injury done to His servants for the truth's sake as done to Himself. When the last decision has been made, when all have taken sides, either for Christ and the commandments, or for the great apostate, God will arise in His power, and the mouths of those who have blasphemed against Him will be forever stopped. Every opposing power will receive its punishment. [Jeremiah 25:30-33]

How long will the seven last plagues last?
Revelation 18:8 - Therefore shall her plagues come in one day, death, and mourning, and famine; and she shall be utterly burned with fire: for strong [is] the Lord God who judgeth her. 

Zechariah 14:7,9, 12 - But it shall be one day which shall be known to the LORD, not day, nor night: but it shall come to pass, [that] at evening time it shall be light. And the LORD shall be king over all the earth: in that day shall there be one LORD, and his name one.  And this shall be the plague wherewith the LORD will smite all the people that have fought against Jerusalem; Their flesh shall consume away while they stand upon their feet, and their eyes shall consume away in their holes, and their tongue shall consume away in their mouth. 

So, again, a day in prophecy is one year in fulfillment. And when you do the mathematics of one hour, we have...
1 day = 1 year
1 year = 360 days
1 day = 24 hours
360 / 24 hours = 15 days

Numbers 14:34 - After the number of the days in which ye searched the land, [even] forty days, each day for a year, shall ye bear your iniquities, [even] forty years, and ye shall know my breach of promise. 

Ezekiel 4:6 - I have appointed thee each day for a year.