2 Samuel 19:13

“And say ye to Amasa, etc.] Who was the general of Absalom’s army, and who might fear he should never be pardoned, whoever was, and looked upon his case as desperate; who had led on the army with Absalom against the king’s threes, and fought them: [art] thou not of my bone, and of my flesh? nearly related to him, being his sister’s son: God do so to me, and more also: than he had done to Absalom; or he imprecates the greatest evil upon himself that could be thought of or named: if thou be not captain of the host before me continually in the room of Joab; signifying that he would not only pardon the treason he had been guilty of, but raise him to the highest post in the army; and to assure him…”

“And say ye to Amasa, &c.--This also was a dextrous stroke of policy. David was fully alive to the importance, for extinguishing the rebellion, of withdrawing from that cause the only leader who could keep it alive; and he, therefore, secretly intimated his intention to raise Amasa to the command of the army in the place of Joab, whose overbearing haughtiness had become intolerable. The king justly reckoned, that from natural temper as well as gratitude for the royal pardon, he would prove a more tractable servant; and David, doubtless, intended in all sincerity to fulfil this promise. But Joab managed to retain his high position (see on Sa2 20:4-10).”

“Of my bone ... - Render as in preceding verse, “art thou not my bone and my flesh?” It is curious to note how the phrase is used in 2 Samuel 5:1 of common descent from Israel, in 2 Samuel 19:12 of the closer kindred of the tribe of Judah, and in this verse of the yet nearer kindred between David and Amasa his sister’s son. Captain ... in the room of Joab - It is very plain that David felt the weight of Joab’s overbearing influence to be very oppressive (compare 2 Samuel 19:22; 2 Samuel 3:39; 2 Samuel 16:10). He was, at this time, very angry with Joab for killing Absalom; and so, thinking it of vital importance to win over Amasa and the army of Judah, he did not scruple to offer him Joab’s…”

“Of Joab - Who, besides his other crimes, had lately exasperated the king by his murder of Absalom, contrary to David's express command. And therefore the king having now the opportunity of another person who had a greater interest than Joab, gladly complies with it, that so he might both chastise Joab for his faults, and rescue himself from the bondage in which Joab had hitherto held him. 2 Kings (2 Samuel) 19:14”

“19:13 commander . . . in his place: Amasa’s appointment would be short-lived (20:7-10).”

“Amasa: Sa2 17:25; Ch1 2:16, Ch1 2:17, Ch1 12:18 God: Rut 1:17; Kg1 19:2 room of Joab: Sa2 19:5-7, Sa2 3:29, Sa2 3:30, Sa2 8:16, Sa2 18:11 2 Kings (2 Samuel) 19:14”

“"And say ye to Amasa, Art thou not my bone and flesh? so shall God do to me, and so add, if thou shalt not be prince of the army (chief captain) before me continually in the place of Joab." 2 Kings (2 Samuel) 19:14”