2 Chronicles 17:12-19

When we behold Jehoshaphat, and his court, and army, his teachers, among the princes and the schools, which he had established through his kingdom, we are led to conclude that Judah, during his reign must have been in a state of great happiness and prosperity. That sweet song which David sung in his days might have been sung by Jehoshaphat in his. For it was the same Lord which giveth salvation unto kings that delivered him, as well as David, from the peril of the sword. Happy is the people that is in such a case; yea, happy is that people whose God is the Lord. Psalms 144:15.