Now Abishai, the brother of Joab, the son of Zeruiah, was chief of the thirty. And he wielded his spear against three hundred men and killed them and won a name beside the three.
And when the Ammonites saw that the Syrians fled, they likewise fled before Abishai and entered the city. Then Joab returned from fighting against the Ammonites and came to Jerusalem.
And David sent out the army, one third under the command of Joab, one third under the command of Abishai the son of Zeruiah, Joab’s brother, and one third under the command of Ittai the Gittite. And the king said to the men, “I myself will also go out with you.”
But Amasa did not observe the sword that was in Joab’s hand. So Joab struck him with it in the stomach and spilled his entrails to the ground without striking a second blow, and he died. Then Joab and Abishai his brother pursued Sheba the son of Bichri.