2Sam 16:9-11

9Then Abishai son of Zeruiah said to the king, “Why should this dead dog curse my lord the king? Let me go over and take off his head.”10But the king said, “What have I to do with you, you sons of Zeruiah? If he is cursing because the Lord has said to him, ‘Curse David,’ who then shall say, ‘Why have you done so?’ ”11David said to Abishai and to all his servants, “My own son seeks my life; how much more now may this Benjaminite! Let him alone, and let him curse; for the Lord has bidden him.