Jehoshaphat removed idolatrous practices and sent officials, Levites, and priests through Judah to teach the Book of the Law. He became prosperous and militarily strong. His alliance with
Ahab brought him into the battle for Ramoth-gilead, where Ahab died despite the prophet Micaiah's warning. Jehoshaphat was rebuked for helping the wicked but was also commended for good found in him. He later appointed judges and instructed them to judge in the fear of the Lord. When a large coalition invaded Judah, Jehoshaphat led the nation in prayer, and God delivered them as singers went before the army.