Malachi 2:8

2:8 You, however, have turned from the way. You have caused many to violate the law; you have corrupted the covenant with Levi,” says the Lord who rules over all.

Malachi 2:14

2:14 Yet you ask, “Why?” The Lord is testifying against you on behalf of the wife you married when you were young, to whom you have become unfaithful even though she is your companion and wife by law.