St. Paul talks about meeting in people’s homes for a service (Mass) (likewise the other apostles held these services on Sundays) and that was a long time before the Canon of the Bible was decided.
So which comes first? The Church of St. Paul and the other apostles?? Or the Bible??
The Catholic Church wins this one! Christ ordained the apostles the first Bishops before his Ascension into heaven!
"Does the Bible support the change to Sunday? Most Christians assume that Sunday is the biblically approved day of worship. The Catholic Church protests that it transferred Christian worship from the biblical Sabbath (Saturday) to Sunday, and that to try to argue that the change was made in the Bible is both dishonest and a denial of Catholic authority. If Protestantism wants to base its teachings only on the Bible, it should worship on Saturday. Romes Challenge"