2 Chronicles 34:33

34:33 Josiah removed all the detestable idols from all the areas belonging to the Israelites and encouraged all who were in Israel to worship the Lord their God. Throughout the rest of his reign they did not turn aside from following the Lord God of their ancestors.

2 Chronicles 35:18

35:18 A Passover like this had not been observed in Israel since the days of Samuel the prophet. None of the kings of Israel had observed a Passover like the one celebrated by Josiah, the priests, the Levites, all the people of Judah and Israel who were there, and the residents of Jerusalem.