1 Chronicles 19:16-19

16And when the Syrians saw that they were put to the worse before Israel, they sent messengers, and drew forth the Syrians that were beyond the River, with Shophach the captain of the host of Hadarezer at their head. 17And it was told David; and he gathered all Israel together, and passed over Jordan, and came upon them, and set the battle in array against them. So when David had put the battle in array against the Syrians, they fought with him: 18And the Syrians fled before Israel; and David slew of the Syrians the men of seven thousand chariots, and forty thousand footmen, and killed Shophach the captain of the host. 19And when the servants of Hadarezer saw that they were put to the worse before Israel, they made peace with David, and served him: neither would the Syrians help the children of Ammon any more.