2 Chronicles 20:33-35
King James Version
33 Howbeit the high places were not taken away: for as yet the people had not prepared their hearts unto the God of their fathers.
34 Now the rest of the acts of Jehoshaphat, first and last, behold, they are written in the book of Jehu the son of Hanani, who is mentioned in the book of the kings of Israel.
35 And after this did Jehoshaphat king of Judah join himself with Ahaziah king of Israel, who did very wickedly:Read full chapter