Then Joab came to the king, and said, What hast thou done? behold, Abner came unto thee; why [is] it [that] thou hast sent him away, and he is quite gone?
Ver. 24. What hast thou done?] q.d., Thou hast done indiscreetly. Joab was ever too bold, blunt, and boisterous with David, which cost him at length the loss of his place. 2Sa 19:13