Now Absalom had set Amasa over the army instead of Joab. (Now Amasa was son of a man whose name was Ithra the Israelite, who had gone to Abigal daughter of Nahash, sister to Zeruiah Joab’s mother.)
Thus Adonai will return his blood on his own head, because he struck down two men more righteous and better than he—Abner son of Ner, commander of the army of Israel, and Amasa son of Jether, commander of the army of Judah—and killed them with the sword, without my father David’s knowledge.
“Moreover, you also know what Joab son of Zeruiah did to me—what he did to the two commanders of the armies of Israel, to Abner son of Ner and Amasa son of Jether, whom he killed, shedding the blood of war in peacetime, and putting the blood of war on his waistband and on his sandals on his feet.
When the news came to Joab, he fled to the Tent of Adonai and grasped the horns of the altar—for Joab had defected to Adonijah, though he had not defected to Absalom.
“Also say to Amasa, ‘Are you not my bone and my flesh? May God do so to me and even more if you do not become my army commander before me continually, in place of Joab!’”
Then a spirit came upon Amasai, leader of the 30, “We are yours, David, on your side, son of Jesse. Shalom, shalom to you, and shalom to him who helps you, for your God supports you!” So David welcomed them and made them leaders of the troops.