1 Chronicles 19:16-19

16When the Arameans saw that they had been 1defeated by Israel, they sent messengers and brought out the Arameans who were beyond the Euphrates River, with Shophach the commander of the army of Hadadezer 2leading them.

17When it was reported to David, he gathered all Israel together and crossed the Jordan, and came upon them and drew up in formation against them. And when David drew up in battle formation against the Arameans, they fought against him.

18And the Arameans fled from Israel, and David killed of the Arameans seven thousand charioteers and forty thousand foot soldiers; and he put Shophach the commander of the army to death.

19So when the servants of Hadadezer saw that they had been 3defeated by Israel, they made peace with David and served him. So the Arameans were not willing to help the sons of Ammon anymore.