Galatians 5:19-21 -Now the works of the flesh are manifest, which are [these]; Adultery, fornication, uncleanness, lasciviousness, Idolatry, witchcraft, hatred, variance, emulations, wrath, strife, seditions, heresies, Envyings, murders, drunkenness, revellings, and such like: of the which I tell you before, as I have also told [you] in time past, that they which do such things shall not inherit the kingdom of God.
Exodus 20:3-6 -Thou shalt have no other gods before me.Thou shalt not make unto thee any graven image, or any likeness [of any thing] that [is] in heaven above, or that [is] in the earth beneath, or that [is] in the water under the earth: Thou shalt not bow down thyself to them, nor serve them: for I the LORD thy God [am] a jealous God, visiting the iniquity of the fathers upon the children unto the third and fourth [generation] of them that hate me; And showing mercy unto thousands of them that love me, and keep my commandments.
The life of king Saul and his partaking in witchcraft for further study:
1 Samuel 15:23 -For rebellion [is as] the sin of witchcraft, and stubbornness [is as] iniquity and idolatry. Because thou hast rejected the word of the LORD, he hath also rejected thee from [being] king.
1 Samuel 28:7 -Then said Saul unto his servants, Seek me a woman that hath a familiar spirit, that I may go to her, and inquire of her. And his servants said to him, Behold, [there is] a woman that hath a familiar spirit at Endor.
Matthew 6:24 -No man can serve two masters: for either he will hate the one, and love the other; or else he will hold to the one, and despise the other. Ye cannot serve God and mammon.
Matthew 5:22 -But I say unto you, That whosoever is angry with his brother without a cause shall be in danger of the judgment: and whosoever shall say to his brother, Raca, shall be in danger of the council: but whosoever shall say, Thou fool, shall be in danger of hell fire.
James 1:8 -A double minded man [is] unstable in all his ways.
James 4:8 -Draw nigh to God, and he will draw nigh to you. Cleanse [your] hands, [ye] sinners; and purify [your] hearts, [ye] double minded.
Ephesians 4:14 -That we [henceforth] be no more children, tossed to and fro, and carried about with every wind of doctrine, by the sleight of men, [and] cunning craftiness, whereby they lie in wait to deceive.
Romans 12:19 -Dearly beloved, avenge not yourselves, but [rather] give place unto wrath: for it is written, Vengeance [is] mine; I will repay, saith the Lord.
Ephesians 4:26-27 -Be ye angry, and sin not: let not the sun go down upon your wrath: Neither give place to the devil.
2 Peter 2:1 -But there were false prophets also among the people, even as there shall be false teachers among you, who privily shall bring in damnable heresies, even denying the Lord that bought them, and bring upon themselves swift destruction.
Matthew 18:15-18 -Moreover if thy brother shall trespass against thee, go and tell him his fault between thee and him alone: if he shall hear thee, thou hast gained thy brother. But if he will not hear [thee, then] take with thee one or two more, that in the mouth of two or three witnesses every word may be established. And if he shall neglect to hear them, tell [it] unto the church: but if he neglect to hear the church, let him be unto thee as a heathen man and a publican.
Genesis 49:16-17 -Dan shall judge his people, as one of the tribes of Israel. Dan shall be a serpent by the way, an adder in the path, that biteth the horse heels, so that his rider shall fall backward.
Proverbs 27:1 -Boast not thyself of to morrow; for thou knowest not what a day may bring forth.
1 Corinthians 3:18 -Let no man deceive himself. If any man among you seemeth to be wise in this world, let him become a fool, that he may be wise
Proverbs 1:10 -My son, if sinners entice thee, consent thou not.
James 1:2 -My brethren, count it all joy when ye fall into divers temptations;
Revelation 3:11, 12 -Behold, I come quickly: hold that fast which thou hast, that no man take thy crown. Him that overcometh will I make a pillar in the temple of my God, and he shall go no more out: and I will write upon him the name of my God, and the name of the city of my God, [which is] new Jerusalem, which cometh down out of heaven from my God: and [I will write upon him] my new name.