2 Samuel 3:24

Overview - 2 Samuel 3
During the war David still waxes stronger.
Six sons are born to him in Hebron.
Abner, displeased with Ish-bosheth,
revolts to David.
13 David requires as a condition to bring him his wife Michal.
17 Abner, having communed with the Israelites, is feasted by David, and dismissed.
22 Joab returning from battle, is displeased with the king, and kills Abner.
28 David curses Joab;
31 and mourns for Abner.
Treasury of Scripture Knowledge

2 Samuel 3:24  (King James Version)
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?

What hast
Joab and his brother Abishai, David's nephews, had been very faithful and highly useful to him in his distresses; and, from gratitude and natural affection, he had inadvertently permitted them to assume almost as much ascendancy over him as Abner had over the pusillanimous Ishbosheth: he trusted and feared them too much, and allowed them all the importance they claimed; which had emboldened them, especially Joab, to a high degree of presumption.
2 Samuel 3:8 2 Samuel 3:39 ; 19:5-7 Numbers 23:11 ; John 18:35