18 There was no Passover like that kept in Israel from the days of Samuel the prophet, nor did any of the kings of Israel keep such a Passover as Josiah kept, with the priests, the Levites, and all Judah and Israel who were present, and the inhabitants of Jerusalem.
2 Chronicles 35:18 Cross References - WEB
2 Kings 23:21-23
21 The king commanded all the people, saying, “Keep the Passover to Yahweh your God, as it is written in this book of the covenant.”
22 Surely there was not kept such a Passover from the days of the judges who judged Israel, nor in all the days of the kings of Israel, nor of the kings of Judah;
23 but in the eighteenth year of king Josiah, this Passover was kept to Yahweh in Jerusalem.
2 Chronicles 30:5
5 So they established a decree to make proclamation throughout all Israel, from Beersheba even to Dan, that they should come to keep the Passover to Yahweh, the God of Israel, at Jerusalem, for they had not kept it in great numbers in the way it is written.