And David also smote Hadadezer the son of Rehob, king
Called sometimes Aramzobah, and was a part of Syria, as its name shows. Benjamin, of Tudela F8 takes it to be the same with Haleb or Aleppo; Josephus F9 calls it Sophene; but that is placed by Ptolemy
as he went
to recover his border at the river Euphrates;
which some understand of Hadadezer, so Jarchi and Kimchi, who attempted to recover part of his dominions that had been taken by some one or another from him, which lay upon the river Euphrates; or he endeavoured to enlarge his dominions, and carry them as far as the river, and establish the borders of them; and while he was doing this, or attempting it, David fell upon him, and routed him; or rather this refers to David, who considering that the ancient border of the land of Israel, as given to Abraham, reached to the river Euphrates, ( Genesis 15:18 ) ; he set out on an expedition to recover this border, and whereas the country of this king lay in his way, he invaded that; upon which Hadadezer rose up against him, and was conquered by him, and by this means the border was recovered to the kingdom of Israel, and reached so far, as is plain it did in Solomon's time, ( 1 Kings 4:21-24 ) .