Contradiction with 1 Kings 9:25
This verse describes Solomon offering burnt offerings and peace offerings three times a year, which suggests a pattern of regular and significant observances unlike the unique Passover described in 2 Chronicles 35:18.
1 Kings 9:25: And three times in a year did Solomon offer burnt offerings and peace offerings upon the altar which he built unto the LORD, and he burnt incense upon the altar that [was] before the LORD. So he finished the house. [upon the altar that: Heb. upon it, etc]
Contradiction with 2 Kings 23:22
This verse states that no such Passover had been kept since the days of the Judges, contradicting the assertion in 2 Chronicles 35:18 that none like it had been kept since the days of Samuel.
2 Kings 23:22: Surely there was not holden such a passover from the days of the judges that judged Israel, nor in all the days of the kings of Israel, nor of the kings of Judah;
Contradiction with 2 Chronicles 30:26
This verse describes a grand celebration of Passover in Hezekiah's time, suggesting an event comparable to or greater than the Passover Josiah celebrated, contradicting the unparalleled nature claimed in 2 Chronicles 35:18.
2 Chronicles 30:26: So there was great joy in Jerusalem: for since the time of Solomon the son of David king of Israel [there was] not the like in Jerusalem.