'Remaining' in the Bible

{It came about in the spring}, at the time {kings} go out, David sent Joab and his servants with him and all of Israel. They ravaged all of the {Ammonites} and besieged Rabbah, but David [was] remaining in Jerusalem.

David sent forth a third of the troops {under the command of Joab}, and a third {under the command of Abishai}, the brother of Joab, the son of Zeruiah, and the remaining third {under the command of Ittai} the Gittite. And the king said to the troops, "I, even I, {will certainly go out} with you."