Introduction to Malachi MALACHI IS THE last of the twelve Minor Prophets, closing the collection of the “Prophets” and, in the Protestant canon, the entire Old Testament. In the Jewish canon the books of the “Writings” follow it. Malachi is unique in the Old Testament because of its form—a dispute or diatribe between God and those of his people who have become apathetic or even antagonistic to him. He dialogues with both people and priests, showing particular concern for their unfaithfulness. The