2 Samuel 10:19
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.
And when all the kings that were servants to Hadarezer,.... That were subject to him, and at his beck and command, at least were hired by him into his service:
saw that they were smitten before Israel; could not stand their ground against them, being too powerful for them;
they made peace with Israel, and served them; became tributaries to them, whereby the promise of the land of Canaan made to Abraham and his seed, as reaching to the river Euphrates, had its accomplishment, Genesis 15:18;
So the Syrians feared to help the children of Ammon any more; who standing by themselves, they were soon and easily conquered by David's forces, as recorded in the following chapters.