Malachi 2:1-3

“And now, O priests, this command is for you. If you will not listen, if you will 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. Indeed, I have already cursed them, because you do not lay it to heart. Behold, I will rebuke your offspring, and spread dung on your faces, the dung of your offerings, and you shall be taken away with it.