1 Corinthians 5:9
I wrote you in my letter not to associate with immoral people;
Ephesians 5:11
Do not participate in the unfruitful deeds of darkness, but instead expose them.
2 Corinthians 6:14
Do not be yoked together with unbelievers. For what partnership have righteousness and lawlessness? Or what fellowship has light with darkness?
2 Thessalonians 3:14
If anyone does not obey our instruction in this letter, take special note of that person and do not associate with him, so that he may be ashamed.
2 Thessalonians 3:6
Now we command you, brethren, in the name of our Lord Jesus Christ, that you keep away from every brother who is living in idleness and not according to the tradition which you received from us.
1 Corinthians 5:2
And you are arrogant! Ought you not rather to have mourned? Let the one who has done this be removed from your midst.
1 Corinthians 5:7
Cleanse out the old leaven that you may be a new lump, as you really are unleavened. For Christ, our Passover lamb, has been sacrificed.
2 Corinthians 6:17
Therefore come out from them and be separate, says the Lord. Touch no unclean thing, and I will receive you.