2 Kings 23:6, 12, 15

The king removed the Asherah pole from the LORD’s Temple and took it outside Jerusalem to the Kidron Valley, where he burned it. Then he ground the ashes of the pole to dust and threw the dust over the graves of the people.

Josiah tore down the altars that the kings of Judah had built on the palace roof above the upper room of Ahaz. The king destroyed the altars that Manasseh had built in the two courtyards of the LORD’s Temple. He smashed them to bits and scattered the pieces in the Kidron Valley.

The king also tore down the altar at Bethel—the pagan shrine that Jeroboam son of Nebat had made when he caused Israel to sin. He burned down the shrine and ground it to dust, and he burned the Asherah pole.