When all the kings who were subject to Hadadezer saw that they had been defeated by Israel, they made peace with Israel and became subject to them. So the Arameans were afraid to help the Ammonites anymore.
Cross References
2 Samuel 8:3David also defeated Hadadezer son of Rehob, king of Zobah, who had marched out to restore his dominion along the Euphrates River.
2 Samuel 8:6Then he placed garrisons in Aram of Damascus, and the Arameans became subject to David and brought him tribute. So the LORD made David victorious wherever he went.
Treasury of Scripture
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.
servants
Genesis 14:1-5
And it came to pass in the days of Amraphel king of Shinar, Arioch king of Ellasar, Chedorlaomer king of Elam, and Tidal king of nations; …
Joshua 11:10
And Joshua at that time turned back, and took Hazor, and smote the king thereof with the sword: for Hazor beforetime was the head of all those kingdoms.
Judges 1:7
And Adonibezek said, Threescore and ten kings, having their thumbs and their great toes cut off, gathered their meat under my table: as I have done, so God hath requited me. And they brought him to Jerusalem, and there he died.
feared
2 Samuel 8:6
Then David put garrisons in Syria of Damascus: and the Syrians became servants to David, and brought gifts. And the LORD preserved David whithersoever he went.
1 Chronicles 19:19
And when the servants of Hadarezer saw that they were put to the worse before Israel, they made peace with David, and became his servants: neither would the Syrians help the children of Ammon any more.
Psalm 18:37,38
I have pursued mine enemies, and overtaken them: neither did I turn again till they were consumed…