Malachi 2:1-9

“And now this commandment is for you, O priests. If you do not listen, and if you do not take it to heart to give honor to My name,” says the LORD of hosts, “then I will send the curse upon you and I will curse your blessings; and indeed, I have cursed them already, because you are not taking it to heart. Behold, I am going to rebuke your offspring, and I will spread refuse on your faces, the refuse of your feasts; and you will be taken away with it. Then you will know that I have sent this commandment to you, that My covenant may continue with Levi,” says the LORD of hosts. “My covenant with him was one of life and peace, and I gave them to him as an object of reverence; so he revered Me and stood in awe of My name. True instruction was in his mouth and unrighteousness was not found on his lips; he walked with Me in peace and uprightness, and he turned many back from iniquity. For the lips of a priest should preserve knowledge, and men should seek instruction from his mouth; for he is the messenger of the LORD of hosts. But as for you, you have turned aside from the way; you have caused many to stumble by the instruction; you have corrupted the covenant of Levi,” says the LORD of hosts. “So I also have made you despised and abased before all the people, just as you are not keeping My ways but are showing partiality in the instruction.