Proverbs 9:6
Leave your folly behind, and you will live; walk in the way of understanding."

Proverbs 13:20
He who walks with the wise will become wise, but the companion of fools will be destroyed.

Proverbs 19:27
If you cease to hear instruction, my son, you will stray from the words of knowledge.

1 Corinthians 5:11
But now I am writing you not to associate with anyone who claims to be a brother but is sexually immoral or greedy, an idolater or a verbal abuser, a drunkard or a swindler. With such a man do not even eat.

Ephesians 5:11
Have no fellowship with the fruitless deeds of darkness, but rather expose them.