In the spring of the year, the time when the kings go out to battle, David sent out Joab and his officers, all of Israel with him. They brought to ruin the Ammonites and besieged Rabbah, but David remained in Jerusalem.
David had said, “Whoever strikes Jebus first will be the commander and leader of the army.” And Joab the son of Zeruiah went up first, and became the commander.