Treasury of Scripture Knowledge
1 Corinthians 5:2
And you are arrogant [about it] instead [of being ashamed]. Should you not be grieved to the point of removing from your fellowship the person who has done this [terrible] deed?
2 Corinthians 6:14
Do not team up with unbelievers [i.e., in close relationships, such as marriage, etc.]. For what do righteousness and wickedness have in common? Or, what fellowship can light have with darkness?
Do not have fellowship with [people who practice] worthless deeds of darkness [i.e., sinful living], but expose them instead.
2 Thessalonians 3:14
And if any person does not obey our instructions, [given] in this letter, you should take note of him so that you do not associate with him, in hope that he will become ashamed [of his conduct].
And the Pharisees and experts in the law of Moses both complained, saying, "This man welcomes worldly people and [even] eats with them."