Most Relevant Verses
Live in harmony with each other. Do not be arrogant, but associate with humble people. Do not think that you are wiser than you really are.
Whoever keeps company with the wise becomes wise, but the companion of fools suffers harm.
But now I am writing to you to stop associating with any so-called brother if he is sexually immoral, greedy, an idolater, a slanderer, a drunk, or a robber. You must even stop eating with someone like that.