Now it happened in the spring, at the time when kings go out to battle, that David sent Joab and his servants with him and all Israel, and they destroyed the sons of Ammon and besieged Rabbah. But David stayed at Jerusalem.
Then David said to the messenger, “Thus you shall say to Joab, ‘Do not let this thing be evil in your sight, for the sword devours one as well as another; make your battle against the city stronger and tear it down’; and so strengthen him.”
Now it happened that when David had come to Mahanaim, Shobi the son of Nahash from Rabbah of the sons of Ammon, Machir the son of Ammiel from Lo-debar, and Barzillai the Gileadite from Rogelim,
(For only Og king of Bashan remained of the remnant of the Rephaim. Behold, his bedstead was an iron bedstead; it is in Rabbah of the sons of Ammon. Its length was nine cubits, and its width four cubits by ordinary cubit.)