2 Chronicles 34:3

3. During the eighth year of his reign, while he was still young, Josiah began to seek the God of his ancestor David. Then in the twelfth year, he began to purify Judah and Jerusalem, destroying all the pagan shrines, the Asherah poles, and the carved idols and cast images.
4. He saw to it that the altars for the images of Baal and their incense altars were torn down. He also made sure that the Asherah poles, the carved idols, and the cast images were smashed and scattered over the graves of those who had sacrificed to them.
5. Then he burned the bones of the pagan priests on their own altars, and so he purified Judah and Jerusalem.
6. He did the same thing in the towns of Manasseh, Ephraim, and Simeon, even as far as Naphtali.
7. He destroyed the pagan altars and the Asherah poles, and he crushed the idols into dust. He cut down the incense altars throughout the land of Israel and then returned to Jerusalem.