The altars which the kings of Judah had built on the palace roof above King Ahaz' quarters, King Josiah tore down, along with the altars put up by King Manasseh in the two courtyards of the Temple; he smashed the altars to bits and threw them into Kidron Valley. 1
Josiah desecrated the altars that King Solomon had built east of Jerusalem, south of the Mount of Olives, for the worship of disgusting idols - Astarte the goddess of Sidon, Chemosh the god of Moab, and Molech the god of Ammon. 2
King Josiah broke the stone pillars to pieces, cut down the symbols of the goddess Asherah, and the ground where they had stood he covered with human bones
Josiah also tore down the place of worship in Bethel, which had been built by King Jeroboam son of Nebat, who led Israel into sin. Josiah pulled down the altar, broke its stones into pieces, and pounded them to dust; he also burned the image of Asherah. 3
Then Josiah looked around and saw some tombs there on the hill; he had the bones taken out of them and burned on the altar. In this way he desecrated the altar, doing what the prophet had predicted long before during the festival as King Jeroboam was standing by the altar. King Josiah looked around and saw the tomb of the prophet who had made this prediction. 4
"Whose tomb is that?" he asked. 5 The people of Bethel answered, "It is the tomb of the prophet who came from Judah and predicted these things that you have done to this altar."
"Leave it as it is," Josiah ordered. "His bones are not to be moved." So his bones were not moved, neither were those of the prophet who had come from Samaria.
In every city of Israel King Josiah tore down all the pagan places of worship which had been built by the kings of Israel, who thereby aroused the Lord's anger. He did to all those altars what he had done in Bethel
He killed all the pagan priests on the altars where they served, and he burned human bones on every altar. Then he returned to Jerusalem.
King Josiah ordered the people to celebrate the Passover in honor of the Lord their God, as written in the book of the covenant
No Passover like this one had ever been celebrated by any of the kings of Israel or of Judah, since the time when judges ruled the nation.