2 Kings 23:16-17

23:16 When Josiah turned around, he saw the tombs there on the hill. So he ordered the bones from the tombs to be brought; he burned them on the altar and defiled it. This fulfilled the Lord’s announcement made by the prophet while Jeroboam stood by the altar during a festival. King Josiah turned and saw the grave of the prophet who had foretold this. 23:17 He asked, “What is this grave marker I see?” The men from the city replied, “It’s the grave of the prophet who came from Judah and foretold these very things you have done to the altar of Bethel.”