2 Chronicles 34:3-5

For in the eighth year of his reign while he was still a youth, he began to seek the God of his father David; and in the twelfth year he began to purge Judah and Jerusalem of the high places, the Asherim, the carved images and the molten images. They tore down the altars of the Baals in his presence, and the incense altars that were high above them he chopped down; also the Asherim, the carved images and the molten images he broke in pieces and ground to powder and scattered it on the graves of those who had sacrificed to them. Then he burned the bones of the priests on their altars and purged Judah and Jerusalem.