Malachi 1, 14-2,2.8-10
Cursed be the rogue who has a male in his flock but pays his vow by sacrificing a blemished animal to me! For I am a great king, says Yahweh Sabaoth, and among the nations my name inspires awe.'
'And now, priests, this commandment is for you.
If you will not listen, if you will not sincerely resolve to glorify my name, says Yahweh Sabaoth, I shall certainly lay a curse on you and I shall curse your blessing. Indeed I will lay a curse, for none of you makes this resolve.
But you yourselves have turned aside from the way; you have caused many to lapse by your teaching. Since you have destroyed the covenant of Levi, says Yahweh Sabaoth,
so I in my turn have made you contemptible and vile to the whole people, for not having kept my ways and for being partial in applying the law.
'Is there not one Father of us all? Did not one God create us? Why, then, do we break faith with one another, profaning the covenant of our ancestors?