Rabbah is captured and David returns to Jerusalem

26Meanwhile, Joab fought against Rabbah of the Ammonites and captured the royal fortress. 27Then Joab sent messengers to David to say, “I have fought against Rabbah and have captured the water supply of the city. 28Now, therefore, assemble the rest of the troops, lay siege to the city, and capture it. Otherwise I will capture the city, and it will be named after me.”