Now Abishai, the brother of Joab and son of Zeruiah, was chief of the thirty. He wielded his spear against three hundred men and killed them, and won a name beside the three.
When the Ammonites realized that Aram had fled, they retreated from before Abishai and entered the city. Then Joab turned away from fighting against the Ammonites, and he came to Jerusalem.
Then David dispatched the people, one-third under the command of Joab, one-third under the command of Abishai the son of Zeruiah and brother of Joab, and one-third under the command of Ittai the Gittite. Then David said to the people, “I myself will go out with you.”
Amasa was not on guard against the sword in the hand of Joab, and he struck him in the midsection spilling his entrails on the ground. He died without being struck a second time. Then Joab and Abishai his brother pursued after Sheba the son of Bichri.