2 Samuel 18:1-4

1And David marshalled the people that were with him, and set captains of thousands and captains of hundreds over them.

2And David sent forth the people, a third part under the hand of Joab, and a third part under the hand of Abishai the son of Zeruiah, Joab's brother, and a third part under the hand of Ittai the Gittite. And the king said to the people, I will surely go forth with you myself also.

3But the people said, Thou shalt not go forth, for if we should in any case flee, they will not care for us; neither if half of us die, will they care for us; for thou art worth ten thousand of us; and now it is better that thou succour us out of the city.

4And the king said to them, I will do what is good in your sight. And the king stood by the gate-side, and all the people came out by hundreds and by thousands.