1 Chronicles 19:14-19

14And Joab and the people that were with him drew near in front of the Syrians to the battle; and they fled before him. 15And when the children of Ammon saw that the Syrians fled, they likewise fled before Abishai his brother, and entered into the city. And Joab came to Jerusalem. 16And when the Syrians saw that they were routed before Israel, they sent messengers, and drew forth the Syrians that were beyond the river; and Shophach the captain of the host of Hadarezer [went] before them. 17And it was told David; and he gathered all Israel, and passed over the Jordan, and came upon them, and set [the battle] in array against them. And David put the battle in array against the Syrians, and they fought with him. 18And the Syrians fled from before Israel; and David slew of the Syrians seven thousand [in] chariots, and forty thousand footmen, and slew Shophach the captain of the host. 19And the servants of Hadarezer saw that they were routed before Israel, and they made peace with David, and became his servants. And the Syrians would no more help the children of Ammon.