Malachi 2:6-8

King James Version

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.