2 Samuel

Then David numbered the people who were with him and set over them commanders of thousands and commanders of hundreds.

David sent the people out, one third under the command of Joab, one third under the command of Abishai the son of Zeruiah, Joab's brother, and one third under the command of Ittai the Gittite. And the king said to the people, "I myself will surely go out with you also."