2 Samuel 18:6-8

American Standard Version

⁶ So the people went out into the field against Israel: and the battle was in the forest of Ephraim. ⁷ And the people of Israel were smitten there before the servants of David, and there was a great slaughter there that day of twenty thousand men. ⁸ For the battle was there spread over the face of all the country; and the forest devoured more people that day than the sword devoured.