David answered, “No, my son, we won't go. It would be too expensive for you.” Absalom tried to get him to change his mind, but David did not want to go. He only said that he hoped they would have a good time.
When Abner returned to Hebron, Joab pretended he wanted to talk privately with him. So he took Abner into one of the small rooms that were part of the town gate and stabbed him in the stomach. Joab killed him because Abner had killed Joab's brother Asahel.