1 Chronicles 19:16-19

16After the Arameans saw that they had been routed by Israel, they sent messengers and had Arameans brought from beyond the Euphrates River, with Shophak the commander of Hadadezer’s army leading them. 17When David was told of this, he gathered all Israel and crossed the Jordan; he advanced against them and formed his battle lines opposite them. David formed his lines to meet the Arameans in battle, and they fought against him. 18But they fled before Israel, and David killed seven thousand of their charioteers and forty thousand of their foot soldiers. He also killed Shophak the commander of their army. 19When the vassals of Hadadezer saw that they had been routed by Israel, they made peace with David and became subject to him. So the Arameans were not willing to help the Ammonites anymore.