2 Samuel 18:1-8

David now mustered the men who were with him and appointed generals and captains to lead them. He sent the troops out in three groups, placing one group under Joab, one under Joab’s brother Abishai son of Zeruiah, and one under Ittai, the man from Gath. The king told his troops, “I am going out with you.” But his men objected strongly. “You must not go,” they urged. “If we have to turn and run—and even if half of us die—it will make no difference to Absalom’s troops; they will be looking only for you. You are worth 10,000 of us, and it is better that you stay here in the town and send help if we need it.” “If you think that’s the best plan, I’ll do it,” the king answered. So he stood alongside the gate of the town as all the troops marched out in groups of hundreds and of thousands. And the king gave this command to Joab, Abishai, and Ittai: “For my sake, deal gently with young Absalom.” And all the troops heard the king give this order to his commanders. So the battle began in the forest of Ephraim, and the Israelite troops were beaten back by David’s men. There was a great slaughter that day, and 20,000 men laid down their lives. The battle raged all across the countryside, and more men died because of the forest than were killed by the sword.