1. It is reported commonly that there is fornication among you, and such fornication as is not so much as named among the Gentiles, that one should have his father's wife.
2. And ye are puffed up, and have not rather mourned, that he that hath done this deed might be taken away from among you.
3. For I verily, as absent in body, but present in spirit, have judged already, as though I were present, concerning him that hath so done this deed,
4. In the name of our Lord Jesus Christ, when ye are gathered together, and my spirit, with the power of our Lord Jesus Christ,
5. To deliver such an one unto Satan for the destruction of the flesh, that the spirit may be saved in the day of the Lord Jesus.
6. Your glorying is not good. Know ye not that a little leaven leaveneth the whole lump?
7. Purge out therefore the old leaven, that ye may be a new lump, as ye are unleavened. For even Christ our passover is sacrificed for us:
8. Therefore let us keep the feast, not with old leaven, neither with the leaven of malice and wickedness; but with the unleavened bread of sincerity and truth.
9. I wrote unto you in an epistle not to company with fornicators:
10. Yet not altogether with the fornicators of this world, or with the covetous, or extortioners, or with idolaters; for then must ye needs go out of the world.
11. But now I have written unto you not to keep company, if any man that is called a brother be a fornicator, or covetous, or an idolater, or a railer, or a drunkard, or an extortioner; with such an one no not to eat.
12. For what have I to do to judge them also that are without? do not ye judge them that are within?
13. But them that are without God judgeth. Therefore put away from among yourselves that wicked person.

Matthew 18:17 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 an heathen man and a publican.

Romans 16:17 Now I beseech you, brethren, mark them which cause divisions and offences contrary to the doctrine which ye have learned; and avoid them.

1 Corinthians 5:13 But them that are without God judgeth. Therefore put away from among yourselves that wicked person.

2 Thessalonians 3:6 Now we command you, brethren, in the name of our Lord Jesus Christ, that ye withdraw yourselves from every brother that walketh disorderly, and not after the tradition which he received of us.

2 Thessalonians 3:14 And if any man obey not our word by this epistle, note that man, and have no company with him, that he may be ashamed.

1 Timothy 6:5 Perverse disputings of men of corrupt minds, and destitute of the truth, supposing that gain is godliness: from such withdraw thyself.

2 John 1:10 If there come any unto you, and bring not this doctrine, receive him not into your house, neither bid him God speed: