Bible Verses About Priests: Teaching the law

Of Levi he said: "Let your tumim and urim be with your pious one, whom you tested at Massah, with whom you struggled at M'rivah Spring.

They will teach Ya'akov your rulings, Isra'el your Torah. They will set incense before you and whole burnt offerings on your altar.

A cohen's lips should safeguard knowledge, and people should seek Torah from his mouth, because he is the messenger of ADONAI-Tzva'ot.