Contradiction with Deuteronomy 16:1-8
This passage limits the Passover celebration to the place chosen by God, unlike 2 Chronicles 30:13 where it is observed in Jerusalem at the king's initiative.
Deuteronomy 16:1-8: Observe the month of Abib, and keep the passover unto the LORD thy God: for in the month of Abib the LORD thy God brought thee forth out of Egypt by night.
Contradiction with Numbers 9:10-11
Allows individuals who are unclean or on a journey to observe Passover at a later date, contrasting with 2 Chronicles 30:13 where more leniency is shown for communal observance in the second month.
Numbers 9:10-11: Speak unto the children of Israel, saying, If any man of you or of your posterity shall be unclean by reason of a dead body, or [be] in a journey afar off, yet he shall keep the passover unto the LORD.
Contradiction with Leviticus 23:5-6
Specifies the timing for observing Passover in the first month on the 14th day, whereas 2 Chronicles 30:13 describes a celebration in the second month.
Leviticus 23:5-6: In the fourteenth [day] of the first month at even [is] the LORD'S passover.