1 Corinthians 5:9
I wrote in a letter to you not to keep company with fornicators.
Ephesians 5:11
Have no fellowship with the unfruitful works of darkness, but instead reprove (expose) (convict) them.
2 Corinthians 6:14
Do not be unequally yoked with unbelievers: for what fellowship does righteousness have with lawlessness? Or what communion does light have with darkness?
2 Thessalonians 3:14
If anyone does not obey our word in this letter, take special note of that person and do not associate with him, so that he will be put to shame.
2 Thessalonians 3:6
Our friends, we command you in the name of our Lord Jesus Christ to keep away from all believers who walk disorderly and who do not follow the instructions that we gave them.
Psalm 1:1-2
Blessed is the man who does not walk in the counsel of the wicked or stand in the way of sinners or sit in the seat of the scornful mockers.
Proverbs 9:6
Forsake the foolish, and live. Travel in the way of understanding.
1 Corinthians 5:2
And you are proud! You should have been filled with sadness that he did this deed. And you should have ejected (expelled) (excommunicated) (disfellowshiped) him from your congregation.
1 Corinthians 5:7
Purge out the old leaven, that you may be a new batch of dough. For even Christ our Passover has been sacrificed for us.
2 Corinthians 6:17
Therefore come out from among them and be separate (set off) (severed from them) (excluded from them), said Jehovah. Do not touch the unclean thing and I will receive you. (Isaiah 52:11) (Jeremiah 51:45)