2 Kings 23:19-21
19 Josiah demolished the shrines on the hills in all of Samaria. They had been built by the various kings of Israel and had made the Lord very angry. But now he crushed them into dust, just as he had done at Bethel. 20 He executed the priests of the heathen shrines upon their own altars, and he burned human bones upon the altars to defile them. Finally he returned to Jerusalem.
21 The king then issued orders for his people to observe the Passover ceremonies as recorded by the Lord their God in The Book of the Covenant.Read full chapter