Ambrose of Milan
David observes that "Thy lies are like a sharp razor" (Psalm 51:4), highlighting the deceitfulness of the traitor by likening him to a razor—an instrument that can enhance beauty but also inflict harm. If someone masquerading as compassionate secretly devises betrayal, as Doeg did, he deservedly invites such comparisons. This is evident in the way he unjustly condemned to death a man he should have protected. The trembling hand of one intoxicated by malice and wavering in integrity often delivers painful wounds. Fueled by malicious intent, Doeg falsely accused the priest Ahimelech of treachery for his kindness in offering shelter to the prophet pursued by a wrathful king (1 Samuel 22:16-19).