2 Samuel 17:9

17:9 At this very moment he is hiding out in one of the caves or in some other similar place. If it should turn out that he attacks our troops first, whoever hears about it will say, ‘Absalom’s army has been slaughtered!’

2 Samuel 18:2

18:2 David then sent out the army – a third under the leadership of Joab, a third under the leadership of Joab’s brother Abishai son of Zeruiah, and a third under the leadership of Ittai the Gittite. The king said to the troops, “I too will indeed march out with you.”