NET

19 When all the kings who were subject to Hadadezer saw they were defeated by Israel, they made peace with Israel and became subjects of Israel. The Arameans were no longer willing to help the Ammonites.

Darby

19 And all the kings that were servants to Hadarezer saw that they were routed before Israel, and they made peace with Israel, and served them. And the Syrians feared to help the children of Ammon any more.

KJV

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.