King of Zobah Zobah was a part of Syria, whose eastern border was Euphrates, as the western was the land of Canaan, and the kingdom of Damascus. As he went to recover his border That is, as David went to extend the limits of his kingdom toward the river Euphrates, he smote this king, who probably came out to oppose him. David remembered the grant which God had made to his people of all the land, as far as that river; and, having subdued his neighbouring enemies, went to recover his rights, according to the divine promise and gift.
Related Commentaries of 2 Samuel 8:3
2 Samuel 8:3
3 David smote also Hadadezer,b the son of Rehob, king of Zobah, as he went to recover his border at the river Euphrates.