Malachi 2:5

2 If you will not listen, and if you will not take it to heart, to give glory to my name,” says the LORD of Armies, “then I will send the curse on you, and I will curse your blessings. Indeed, I have cursed them already, because you do not take it to heart.

3 Behold, I will rebuke your offspring, and will spread dung on your faces, even the dung of your feasts; and you will be taken away with it.

4 You will know that I have sent this commandment to you, that my covenant may be with Levi,” says the LORD of Armies.

5 “My covenant was with him of life and peace; and I gave them to him that he might be reverent toward me; and he was reverent toward me, and stood in awe of my name.

6 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 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 Armies.

8 But you have turned away from the path. You have caused many to stumble in the law. You have corrupted the covenant of Levi,” says the LORD of Armies.