2 Samuel 3:24

“Then Joab came to the king, etc.] To the apartment where he was; perhaps he was told the above at his first entering into the king’s palace, by some in waiting, before he came to the king, which filled him with wrath, so that he came to him in a passion: and said to him, what hast thou done? which was very insolent in a subject to say to his prince: behold, Abner came unto thee; I have been credibly informed of it, and am assured it is a fact which cannot be denied; he represents it as if he had done a wrong thing to admit him to come to him; but perhaps the great fault was that he had let him go: why [is] it [that] thou hast sent him away, and he is quite gone? or “going, [is] gone” f57; is…”

“JOAB KILLS ABNER. (Sa2 3:22-30) Joab came to the king, and said, What hast thou done?--Joab's knowledge of Abner's wily character might have led him to doubt the sincerity of that person's proposals and to disapprove the policy of relying on his fidelity. But undoubtedly there were other reasons of a private and personal nature which made Joab displeased and alarmed by the reception given to Abner. The military talents of that general, his popularity with the army, his influence throughout the nation, rendered him a formidable rival. In the event of his overtures being carried out, the important service of bringing over all the other tribes to the king of Judah would establish so strong a…”

“Joab saw that if Abner was reconciled to David, his own post as second in the state would be forfeited; and then with characteristic unscrupulosity he proceeded to take Abner’s life. return to 'Top of Page'”

“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. Sa2 3:8, Sa2 3:39, Sa2 19:5-7; Num 23:11; Joh 18:35 2 Kings (2 Samuel) 3:25”