Proverbs 14:7
Leave the presence of a foolish person, or you will not understand wise counsel.
Proverbs 9:6
Abandon your foolish ways so that you may live, and proceed in the way of understanding."
Proverbs 13:20
The one who associates with the wise grows wise, but a companion of fools suffers harm.
Proverbs 19:27
If you stop listening to instruction, my child, you will stray from the words of knowledge.
1 Corinthians 5:11
But now I am writing to you not to associate with anyone who calls himself a Christian who is sexually immoral, or greedy, or an idolater, or verbally abusive, or a drunkard, or a swindler. Do not even eat with such a person.
Ephesians 5:11
Do not participate in the unfruitful deeds of darkness, but rather expose them.