Divorce is against the clear Word of God. Divorce is against the character of God. God is faithful. What He promises, He does. Divorce is all in contrast to the faithful character of God.
Love calls for loyalty.
Those who divorce betray this sacred commitment of love, demonstrating, instead, unfaithfulness and treachery. The impact of Malachi 2, however, is not primarily broken marriage vows, but Israel's broken covenant with God. In graphic language, God demonstrated that covenant breakers with men become covenant breakers with God. Where the spirit of treachery is in human relationships, in other words, it will be in one's relationship with God. Divorce demonstrates hardness of heart.