This study will help us answer these most important questions:

Who is the Word of God?
What is the Word of God to us as Christians?
How important is the Word of God?

First, why do we have to study the Word of God or the Bible?
John 5:39 Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me.

It will help us see the way to go that will lead to eternal life
The Word of God tells us about the Saviour which is Jesus Christ.

Who 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. 

Jesus is the God who was made flesh and dwelt among people.

Revelation 19:11-13 And I saw heaven opened, and behold a white horse; and he that sat upon him [was] called Faithful and True, and in righteousness he doth judge and make war.  His eyes [were] as a flame of fire, and on his head [were] many crowns; and he had a name written, that no man knew, but he himself. And he [was] clothed with a vesture dipped in blood: and his name is called The Word of God. 

The above verses give us the description of Jesus Christ who sat upon a white horse. Verse 13 confirms who is sitting upon the white horse and it is clearly stated His name is the Word of God. Therefore the Word of God plainly refers to Jesus Christ, the Son of God the Father.

What is the Word of God for?
Psalm 119:105 Thy word [is] a lamp unto my feet, and a light unto my path.

2 Timothy 3:16-17 All scripture [is] given by inspiration of God, and [is] profitable for doctrine, for reproof, for correction, for instruction in righteousness: That the man of God may be perfect, thoroughly furnished unto all good works.

The Word of God will serve as a light unto our path as we live daily in this wicked dark world so we can see our way.
The Word of God is our guide for teaching the doctrines of Jesus. It is also used as a guide when we do correction or rebuke sin. It is also our guide to instruct our fellowmen on how to live a righteous life and the reason for all these is for man to be found perfect and blameless rich in good works unto the Lord.

How pure is the Word of God?
Psalms 119:140 Thy word [is] very pure: therefore thy servant loveth it.

Proverbs  30:5      Every word of God [is] pure: he [is] a shield unto them that put their trust in him.

Psalms 18:30 [As for] God, his way [is] perfect: the word of the LORD is tried: he [is] a buckler to all those that trust in him.

2 Samuel 22:31  [As for] God, his way [is] perfect; the word of the LORD [is] tried: he [is] a buckler to all them that trust in him.

Jesus Christ is pure and truthful. His Words are also the same.

How true is the Word of God?
John 17:17 Sanctify them through thy truth: thy word is truth. 

Obedience to the word of God will sanctify man. It is through obedience to the word of God, Jesus Christ that man can become holy and sanctified.

Who wrote the Word of God?
2 Peter 1:21 For the prophecy came not in old time by the will of man: but holy men of God spake [as they were] moved by the Holy Ghost.
Some people will say that we cannot trust the Bible since it was only written by men. Yes, it was written by men but these men were holy and inspired by the Holy Ghost. The Bible is for man therefore it needs to be written in the language of man. The Bible is not for animals who cannot read nor write. Angels could not be used for we cannot understand the language of a spiritual being. Therefore God has to use men who can write and understand the language of humanity.

How sharp is the Word of God?
Hebrews 4:12 For the word of God [is] quick, and powerful, and sharper than any twoedged sword, piercing even to the dividing asunder of soul and spirit, and of the joints and marrow, and [is] a discerner of the thoughts and intents of the heart.

The Word of God is that sharp that it can cut away the surplus in our characters. In order for man to become holy, all his defects must be removed.  Most of the time the cutting process is so painful as the sword goes deep into the soul, spirit, joints and marrow but everyone who desire perfection must endure through the rough times of purification. The Word of God will help us see our defects and that we need a Saviour. It will inform us the sinfulness of sin and that man must live a holy life through the righteousness of Christ before he can be called worthy to receive eternal life. The Word of God can see our motives and intentions. Nothing hidden can remain covered forever. Jesus Christ can uncover anything hidden from man's view.

How long is the Word of God going to last?
Isaiah 40:8 The grass withereth, the flower fadeth: but the word of our God shall stand for ever.

Matthew  24:35 Heaven and earth shall pass away, but my words shall not pass away.

Jesus is eternal so do His Words. His Words never ends. They will last forever. Whatever He says remains throughout eternity.

What are we going to do with the Word?
Luke 11:28 But he said, Yea rather, blessed [are] they that hear the word of God, and keep it.
James 1:22 But be ye doers of the word, and not hearers only, deceiving your own selves.  

It is not enough to read the Bible or listen to its words. The most important thing to do is to apply or keep the words that are written therein. If we apply the Word of God in our lives, Jesus will abide in us and He will guide our every steps.