II Chronicles 17:9-12

So they taught in Judah, and had the Book of the Law of the LORD with them; they went throughout all the cities of Judah and taught the people. And the fear of the LORD fell on all the kingdoms of the lands that were around Judah, so that they did not make war against Jehoshaphat. Also some of the Philistines brought Jehoshaphat presents and silver as tribute; and the Arabians brought him flocks, seven thousand seven hundred rams and seven thousand seven hundred male goats. So Jehoshaphat became increasingly powerful, and he built fortresses and storage cities in Judah.