Christians do not keep Old Testament laws

Judaism argues…

Matthew 5:17 “Do not think that I have come to abolish the Law or the Prophets; I have not come to abolish them but to fulfill them.

Jesus later abrogated some of the laws and his disciples abrogated even more laws.

Why is the Sabbath celebrated on Sunday?

Why do Christians eat pork?

Why don’t Christian celebrate the Hebrew festivals but instead celebrate pagan festivals such as Christmas and Easter? Jesus did not teach that the Biblical festivals do not need to be observed.