2 Chronicles 29:17

29:17 On the first day of the first month they began consecrating; by the eighth day of the month they reached the porch of the Lord’s temple. For eight more days they consecrated the Lord’s temple. On the sixteenth day of the first month they were finished.

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.