Avishai, the brother of Yo'av, he was chief of the three; for he lifted up his spear against three hundred and killed them, and had a name among the three.
David sent forth the people, a third part under the hand of Yo'av, and a third part under the hand of Avishai the son of Tzeru'yah, Yo'av's brother, and a third part under the hand of Ittai the Gittite. The king said to the people, I will surely go forth with you myself also.
David said to Avishai, Now will Sheva the son of Bikhri do us more harm than did Avshalom: take your lord's servants, and pursue after him, lest he get him fortified cities, and escape out of our sight.
But Avishai the son of Tzeru'yah helped him, and struck the Pelishti, and killed him. Then the men of David swore to him, saying, You shall go no more out with us to battle, that you don't quench the lamp of Yisra'el.
and said, My God forbid it me, that I should do this: shall I drink the blood of these men who have put their lives in jeopardy? for with [the jeopardy of] their lives they brought it. Therefore he would not drink it. These things did the three mighty men.
Then answered David and said to Achimelekh the Chittite, and to Avishai the son of Tzeru'yah, brother to Yo'av, saying, Who will go down with me to Sha'ul to the camp? Avishai said, I will go down with you.