And it was done, when the year turned again, in that time in which kings be wont to go forth to battles, David sent forth Joab, and with him his servants, and all Israel; and they destroyed the sons of Ammon, and besieged Rabbah; and David dwelled in Jerusalem.
and he said, Each man that slayeth the first Jebusite, shall be prince and duke. Therefore Joab, the son of Zeruiah, went up first, and was made prince.