David had said, “The person who leads the attack against the Jebusites will become the commander over all my army.” Joab son of Zeruiah led the attack, so he became the commander of the army.
Joab son of Zeruiah and David’s men also went there and met Abner and Ish-Bosheth’s men at the pool of Gibeon. Abner’s group sat on one side of the pool; Joab’s group sat on the other.
When Abner arrived at Hebron, Joab took him aside into the gateway. He acted as though he wanted to talk with Abner in private, but Joab stabbed him in the stomach, and Abner died. Abner had killed Joab’s brother Asahel, so Joab killed Abner to pay him back.
They said, “Look at this man! He keeps coming out to challenge Israel. The king will give much money to whoever kills him. He will also let whoever kills him marry his daughter. And his father’s family will not have to pay taxes in Israel.”