Malachi 2
4 Ref You will know that I have sent this commandment to you, that my covenant may be with Levi," says Yahweh of Hosts.
5 Ref "My covenant was with him of life and peace; and I gave them to him who he might be reverent toward me; and he was reverent toward me, and stood in awe of my name.
6 Ref The law of truth was in his mouth, and unrighteousness was not found in his lips. He walked with me in peace and uprightness, and turned many away from iniquity.
7 Ref For the priest's lips should keep knowledge, and they should seek the law at his mouth; for he is the messenger of Yahweh of Hosts.
8 Ref But you have turned aside out of the way. You have caused many to stumble in the law. You have corrupted the covenant of Levi," says Yahweh of Hosts.