2 Kings 23:18-23
English Standard Version
Chapter 23
18And he said, "Let him be; let no man move his bones." So they let his bones alone, with the bones of the prophet who came out of Samaria. 19And Josiah removed all the shrines also of the high places that were in the cities of Samaria, which kings of Israel had made, provoking the Lord to anger. He did to them according to all that he had done at Bethel. 20And he sacrificed all the priests of the high places who were there, on the altars, and burned human bones on them. Then he returned to Jerusalem.
21And the king commanded all the people, "Keep the Passover to the Lord your God, as it is written in this Book of the Covenant."
22For no such Passover had been kept since the days of the judges who judged Israel, or during all the days of the kings of Israel or of the kings of Judah.
23But in the eighteenth year of King Josiah this Passover was kept to the Lord in Jerusalem.