2 Kings 23:12-16

The king also tore down the altars that were on the roof, the upper chamber of Ahaz, which the kings of Judah had made, and the altars which Manasseh had made in the two courtyards of the house of the Lord; and he smashed them there and threw their dust into the brook Kidron.

And the king defiled the high places that were opposite Jerusalem, which were on the right of the mount of destruction which Solomon the king of Israel had built for Ashtoreth the abomination of the Sidonians, for Chemosh the abomination of Moab, and for Milcom the abomination of the sons of Ammon.

He also smashed to pieces the memorial stones and cut down the Asherim, and filled their places with human bones.

Furthermore, the altar that was at Bethel and the high place which Jeroboam the son of Nebat, who misled Israel into sin, had made, even that altar and the high place he tore down. Then he burned the high place, ground the remains to dust, and burned the Asherah.

Now when Josiah turned, he saw the graves that were there on the mountain, and he sent men and took the bones from the graves, and burned them on the altar and defiled it in accordance with the word of the Lord which the man of God proclaimed, the one who proclaimed these things.