2 Kings 23:4-6, 10, 14

The king commanded Hilkiah the high priest and the priests of the next rank and the gatekeepers to bring out of the Temple of the LORD everything made for Baal, Asherah, and all the stars of the sky. Then Josiah burned them outside Jerusalem in the open country of the Kidron Valley and carried their ashes to Bethel. The kings of Judah had chosen priests for these gods. These priests burned incense in the places where gods were worshiped in the cities of Judah and the towns around Jerusalem. They burned incense to Baal, the sun, the moon, the planets, and all the stars of the sky. But Josiah took those priests away. He removed the Asherah idol from the Temple of the LORD and took it outside Jerusalem to the Kidron Valley, where he burned it and beat it into dust. Then he threw the dust on the graves of the common people.

Josiah ruined Topheth, in the Valley of Ben Hinnom, so no one could sacrifice his son or daughter to Molech.

Josiah smashed to pieces the stone pillars they worshiped, and he cut down the Asherah idols. Then he covered the places with human bones.