2 Chronicles 35:16-19

16So they did everything properly to serve the Lord that day. Everyone did what King Josiah had told them to do. They had the Passover meal and they offered the burnt offerings on the Lord's altar.

17Some Israelite people were also there in Jerusalem for the Passover festival at that time. They also stayed seven more days for the festival of Flat Bread.

18There had not been a Passover festival like that in Israel since the time of the prophet Samuel. No king of Israel had enjoyed a Passover festival as good as the one that King Josiah had. The priests, the Levites and all the people enjoyed the festival. They were the people of Judah, the people of Israel who had come to Jerusalem, as well as the people who lived in Jerusalem.

19This Passover festival happened in the 18th year that Josiah ruled Judah as king.