I've yet to mention Paul, however Holy Scriptures were accepted by Church fathers, the only ones in contentment were 2 Peter, Hebrews and Revelation, yet all made it into the canon. I see no reason for Christians to keep the civil laws and ceremonies of Israel as they were authored by Moses (2 Chor 35:12) to create order and to help the Jews look forward to their Messiah, again the example of Passover