II Chronicles 20:31-34

So Jehoshaphat was king over Judah. He was thirty-five years old when he became king, and he reigned twenty-five years in Jerusalem. His mother’s name was Azubah the daughter of Shilhi. And he walked in the way of his father Asa, and did not turn aside from it, doing what was right in the sight of the LORD. Nevertheless the high places were not taken away, for as yet the people had not directed their hearts to the God of their fathers. Now the rest of the acts of Jehoshaphat, first and last, indeed they are written in the book of Jehu the son of Hanani, which is mentioned in the book of the kings of Israel.