2 Chronicles 34:3-7

3In the eighth year of his reign, while he was still young, Josiah began to seek the God of his father David, and in the twelfth year he began to cleanse Judah and Jerusalem of the high places, the Asherah poles, the carved idols, and the cast images. 4Then in his presence the altars of the Baals were torn down, and he cut to pieces the incense altars that were above them. He shattered the Asherah poles, the carved idols, and the cast images, crushed them to dust, and scattered them over the graves of those who had sacrificed to them. 5Then he burned the bones of the priests on their altars. So he cleansed Judah and Jerusalem.

6Josiah did the same in the cities of Manasseh, Ephraim, and Simeon, as far as Naphtali, and in the ruins1 around them. 7He tore down the altars and Asherah poles, crushed the idols to powder, and cut to pieces all the incense altars throughout the land of Israel. Then he returned to Jerusalem.