2 Chronicles 35:18
And there was no passover like to that kept in Israel from the days of Samuel the prophet; neither did all the kings of Israel keep such a passover as Josiah kept, and the priests, and the Levites, and all Judah and Israel that were present, and the inhabitants of Jerusalem.
Cross-references
2 Chronicles 30:5
Parallel
2 Chronicles 30:5 recounts Hezekiah's proclamation for a Passover, providing an earlier reform to compare with Josiah's unprecedented one.
2 Chronicles 30:26
Parallel
2 Chronicles 30:26 records great joy at Hezekiah's Passover unlike since Solomon, paralleling Josiah's uniqueness claim.
2 Kings 23:21–23
Parallel
2 Kings 23:21-23 is the parallel account of Josiah's Passover, stating the same unprecedented nature since the judges.
Leviticus 23:5
Parallel
Leviticus 23:5 establishes the date and ordinance for Passover, the law that Josiah's observance follows.
2 Kings 23:22
Parallel
2 Kings 23:22 is the identical claim about no Passover like Josiah's since the judges, from the parallel Kings account.
Nehemiah 8:17
Parallel
Nehemiah 8:17 uses similar 'since the days of...not done so' language for the Feast of Tabernacles, mirroring the unique Passover described here.