Otherwise I should have wrought falsehood against mine own life: for there is no matter hid from the king, and thou thyself wouldest have set thyself against me. Thou thyself wouldest have set thyself against me - This is a strong appeal to Joab's loyalty, and respect for the orders of David; but he was proof against every fine feeling, and against every generous sentiment.
Related Commentaries of 2 Samuel 18:13
2 Samuel 18:13
13 Otherwise I should have wrought falsehood against mine own life: for there is no matter hid from the king, and thou thyself wouldest have set thyself against me.