The three sons of Zeruiah were there: Joab, Abishai, and Asahel. Asahel, who could run as fast as a wild deer,

So Joab and his brother Abishai took revenge on Abner for killing their brother Asahel in the battle at Gibeon.

He placed the rest of his troops under the command of his brother Abishai, who put them in position facing the Ammonites.

When the Ammonites saw the Syrians running away, they fled from Abishai and retreated into the city. Then Joab turned back from fighting the Ammonites and went back to Jerusalem.

Then he sent them out in three groups, with Joab and Joab's brother Abishai and Ittai from Gath, each in command of a group. And the king said to his men, "I will go with you myself."

Amasa was not on guard against the sword that Joab was holding in his other hand, and Joab stabbed him in the belly, and his insides spilled out on the ground. He died immediately, and Joab did not have to strike again. Then Joab and his brother Abishai went on after Sheba.

Then David asked Ahimelech the Hittite, and Abishai the brother of Joab (their mother was Zeruiah), "Which of you two will go to Saul's camp with me?" "I will," Abishai answered.

Abishai said to David, "God has put your enemy in your power tonight. Now let me plunge his own spear through him and pin him to the ground with just one blow---I won't have to strike twice!"

He also had two daughters, Zeruiah and Abigail. Jesse's daughter Zeruiah had three sons: Abishai, Joab, and Asahel.

Joab's brother Abishai was the leader of "The Famous Thirty." He fought with his spear against three hundred men and killed them, and became famous among "The Thirty."

He was the most famous of "The Thirty" and became their leader, but he was not as famous as "The Three."