Absalom had made Amasa commander of the army in place of Joab. Amasa was the son of Jether. Jether belonged to the family line of Ishmael. He had married Abigail. She was the daughter of Nahash and the sister of Zeruiah. Zeruiah was the mother of Joab.
But David replied, “You and Joab are sons of Zeruiah. What does this have to do with you? What right do you have to interfere? Should anyone be put to death in Israel today? Don’t I know that today I am king over Israel again?”
Joab, the son of Zeruiah, and David’s men also went out. All of them met at the pool in Gibeon. One group sat down on one side of the pool. The other group sat on the other side.
I’m the anointed king. But today I’m weak. These sons of Zeruiah are too powerful for me. May the Lord pay back the one who killed Abner! May he pay him back for the evil thing he has done!”
Abishai was chief over the three mighty warriors. He was the brother of Joab. Abishai used his spear against 300 men. He killed all of them. So he became as famous as the three mighty warriors.
Then David spoke to Ahimelek, the Hittite. He also spoke to Joab’s brother Abishai, the son of Zeruiah. He asked them, “Who will go down with me into the camp to Saul?” “I’ll go with you,” said Abishai.