And now, you priests, this warning is for you.

If you do not listen, and if you do not resolve to honor my name,
says the Lord Almighty

I will send a curse on you, and I will curse your blessings.

=>For the lips of a priest ought to preserve knowledge, because he is the messenger of the Lord Almighty and people seek instruction from his mouth.

Mal 2:1‭-‬2,7