Malachi 2:6

⁴  And ye shall know that I have sent this commandment unto you, that my covenant might be with Levi, saith the LORD of hosts.

⁵  My covenant was with him of life and peace; and I gave them to him for the fear wherewith he feared me, and was afraid before my name.

⁶  The law of truth was in his mouth, and iniquity was not found in his lips: he walked with me in peace and equity, and did turn many away from iniquity.

⁷  For the priest's lips should keep knowledge, and they should seek the law at his mouth: for he is the messenger of the LORD of hosts.

⁸  But ye are departed out of the way; ye have caused many to stumble at the law; ye have corrupted the covenant of Levi, saith the LORD of hosts.