Some of the Philistines; who had been subjects to this kingdom ever since David's time, but, it seems, had neglected this duty in the times of his predecessors, but now were moved by their own fears to perform it. The Arabians brought him flocks; either because he had upon some just occasion waged war against them, and subdued them, though the particulars of it be not described in Scripture; or because they voluntarily put themselves under his protection, in recompence whereof they sent him those presents; or only as a free acknowledgment of their respects to him.
Related Commentaries of 2 Chronicles 17:11
2 Chronicles 17:11
11 Also some of the Philistines brought Jehoshaphat presents, and tribute silver; and the Arabians brought him flocks, seven thousand and seven hundred rams, and seven thousand and seven hundred he goats.