places in those tribes that had come off to him, or had been taken by him; for otherwise these belonged to the ten tribes under the government of Jeroboam, and his successors, and the next clause explains it: for they fell to him out of Israel abundance, when they saw that the Lord his God was with him; as was clear by the victory he gave him over the Ethiopians; after that time many in the above tribes came over to him; the Targum is,"when they saw the Word of the Lord his God was his help.''