2 Samuel 10:10-19

10 the rest of his men he put in the charge of Abi'shai his brother, and he arrayed them against the Ammonites.
11 And he said, "If the Syrians are too strong for me, then you shall help me; but if the Ammonites are too strong for you, then I will come and help you.
12 Be of good courage, and let us play the man for our people, and for the cities of our God; and may the LORD do what seems good to him."
13 So Jo'ab and the people who were with him drew near to battle against the Syrians; and they fled before him.
14 And when the Ammonites saw that the Syrians fled, they likewise fled before Abi'shai, and entered the city. Then Jo'ab returned from fighting against the Ammonites, and came to Jerusalem.
15 But when the Syrians saw that they had been defeated by Israel, they gathered themselves together.
16 And Hadade'zer sent, and brought out the Syrians who were beyond the Euphra'tes; and they came to Helam, with Shobach the commander of the army of Hadade'zer at their head.
17 And when it was told David, he gathered all Israel together, and crossed the Jordan, and came to Helam. And the Syrians arrayed themselves against David, and fought with him.
18 And the Syrians fled before Israel; and David slew of the Syrians the men of seven hundred chariots, and forty thousand horsemen, and wounded Shobach the commander of their army, so that he died there.
19 And when all the kings who were servants of Hadade'zer saw that they had been defeated by Israel, they made peace with Israel, and became subject to them. So the Syrians feared to help the Ammonites any more.
Revised Standard Version of the Bible, copyright 1952 [2nd edition, 1971] by the Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.