One spring day, during the time of year when kings go off to war, David sent out Joab, along with his personal staff and all of Israel's army. They utterly destroyed the Ammonites and then attacked Rabbah while David remained in Jerusalem.

David responded to the messenger, "Here's what you're to tell Joab: "Don't be troubled by this incident, because the battle sword consumes one or another from time to time. Consolidate your attack against the city and conquer it.' Be sure to encourage him."