1 Kings 22:41-43

41In the fourth year of Ahab’s reign over Israel, Jehoshaphat son of Asa became king of Judah. 42Jehoshaphat was thirty-five years old when he became king, and he reigned in Jerusalem twenty-five years. His mother’s name was Azubah daughter of Shilhi.

43And Jehoshaphat walked in all the ways of his father Asa; he did not turn away from them, but did what was right in the eyes of the LORD.

The high places, however, were not removed; the people still sacrificed and burned incense on the high places.