1 Chronicles 19:10-19

10Now when Joab saw that the battle was set against him before and behind, he chose of all the choice men of Israel, and put them in array against the Syrians. 11And the rest of the people he committed into the hand of Abishai his brother; and they put themselves in array against the children of Ammon. 12And he said, If the Syrians be too strong for me, then thou shalt help me; but if the children of Ammon be too strong for thee, then I will help thee. 13Be of good courage, and let us play the man for our people, and for the cities of our God: and Jehovah do that which seemeth him good. 14So Joab and the people that were with him drew nigh before the Syrians unto the battle; and they fled before him. 15And when the children of Ammon saw that the Syrians were fled, they likewise fled before Abishai his brother, and entered into the city. Then Joab came to Jerusalem.

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 the 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.