Absalom appointed Amasa to take Joab’s place as commander of the army. (Amasa was the son of a man named Ithra, a descendant of Ishmael. His mother was Abigail, the daughter of Nahash and sister of Joab’s mother Zeruiah.)
David responded, “Are you sure we’re from the same family, sons of Zeruiah? You are my enemies today. Should anyone in Israel be killed today? Don’t I know that I’m king of Israel again?”
Zeruiah’s son Joab and David’s officers also left ⌞Hebron⌟. Both groups met at the pool of Gibeon. They sat down there, one group on one side of the pool and the other group on the other side of the pool.
Today I’m weak, though I’m the anointed king. These men, Zeruiah’s sons, are too cruel for me. May the Lord repay this evildoer as his evil deeds deserve.”
David asked Ahimelech the Hittite and Abishai, who was Zeruiah’s son and Joab’s brother, “Who will go with me to Saul in the camp?” Abishai answered, “I’ll go with you.”