When King Toi of Hamath heard that David had defeated the entire army of Hadadezer,
Here is, 1. The court made to David by the king of Hamath, who, it seems was at this time at war with the king of Zobah. He hearing of David's success against his enemy, sent his own son ambassador to him (Sa2 8:9, Sa2 8:10), to congratulate him on his victory, to return him thanks for the favour he had done him in breaking...
Commenting on 2 Samuel 8:9-14
When Toi king of Hamath,.... Which was another small kingdom in Syria, perhaps lately erected to defend themselves against Hadadezer, and this the first king of it, at least the first we hear of; his name is Tou in Ch1 18:9; where in the Targum he is called king of Antioch.
Toi king of Hamath--CÅ“le-Syria; northwards, it extended to the city Hamath on the Orontes, which was the capital of the country. The Syrian prince, being delivered from the dread of a dangerous neighbor, sent his son with valuable presents to David to congratulate him on his victories, and solicit his alliance and protection.