Contradiction with Exodus 31:15
Exodus 31:15 commands rest on the Sabbath, which might conflict with the tasks involved in Exodus 12:28.
Exodus 31:15: Six days may work be done; but in the seventh [is] the sabbath of rest, holy to the LORD: whosoever doeth [any] work in the sabbath day, he shall surely be put to death. [holy: Heb. holiness]
Contradiction with Matthew 5:17
Jesus speaks of fulfilling the law, which could be seen as superseding the need to strictly adhere to the commands given in Exodus 12:28.
Matthew 5:17: Think not that I am come to destroy the law, or the prophets: I am not come to destroy, but to fulfil.
Contradiction with Mark 7:15
Jesus challenges the importance of ritual purity laws, potentially contradicting the adherence to specific commands like those in Exodus 12:28.
Mark 7:15: If any man have ears to hear, let him hear.
Contradiction with Colossians 2:16
Advises against letting others judge you by what you eat or drink or with regard to religious festivals, possibly contradicting the strict observance in Exodus 12:28.
Colossians 2:16: Let no man therefore judge you in meat, or in drink, or in respect of an holyday, or of the new moon, or of the sabbath [days]: [in meat...: or, for eating and drinking] [respect: or, part]
Contradiction with Romans 14:5
Suggests that every person be fully convinced in their own mind regarding observance of days, which can contradict the strict compliance emphasized in Exodus 12:28.
Romans 14:5: One man esteemeth one day above another: another esteemeth every day [alike]. Let every man be fully persuaded in his own mind. [fully persuaded: or, fully assured]
Contradiction with Hebrews 7:18-19
Speaks of a former commandment being set aside, suggesting a potential contradiction in upholding specific laws like Exodus 12:28.
Hebrews 7:18-19: For there is verily a disannulling of the commandment going before for the weakness and unprofitableness thereof.