2 Samuel 10:19 in the World English Bible
When all the kings who were servants to Hadadezer saw that they were defeated before Israel, they made peace with Israel and served them. So the Syrians were afraid to help the children of Ammon any more.
Context
18 And the Syrians fled before Israel; and David slew the men of seven hundred chariots of the Syrians, and forty thousand horsemen, and smote Shobach the captain of their host, who died there.
19 And when all the kings that were servants to Hadarezer saw that they were smitten before Israel, they made peace with Israel, and served them. So the Syrians feared to help the children of Ammon any more.