2 Kings 23:20
And he slew all the priests of the high places that were there upon the altars, and burned men's bones upon them, and returned to Jerusalem.
And he slew all the priests of the high places that were there,.... The idolatrous priests who sacrificed to Baal, and other Heathen deities; for as for others that burnt incense in high places, yet to the true God, those he spared, though they were not suffered to officiate at the altar of God: the others he slew
upon the altars; where they sacrificed:
and burnt men's bones upon them: the bones of the priests, and worshippers of idols, as he had done at Bethel:
and returned to Jerusalem; after he had gone through the land, both of Judah and Israel, and abolished idolatrous worship everywhere.