2 Samuel 18:5-9

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. During the battle, Absalom happened to come upon some of David’s men. He tried to escape on his mule, but as he rode beneath the thick branches of a great tree, his hair got caught in the tree. His mule kept going and left him dangling in the air.