2 Samuel 16:9-10

Then Abishai son of Zeruiah said to the king, “Why should this dead dog curse my lord the king? Let me go over and cut off his head.” But the king said, “What does this have to do with you, you sons of Zeruiah? If he is cursing because the LORD said to him, ‘Curse David,’ who can ask, ‘Why do you do this?’ ”