Basically, the Sabbath was moved for marketing purposes. The Council of Laodicea in 364 ordered all religious festivals to Sunday, not Saturday. There were a fe

Basically, the Sabbath was moved for marketing purposes. The Council of Laodicea in 364 ordered all religious festivals to Sunday, not Saturday. There were a few reasons for this. One, Rome was mostly a pagan country, and most pagan religions reserved Sunday as a religious holiday. So the change would have helped convert pagans, and keep Christians in the church. Two, it differentiated the Christians from the Jews, and the Jews were being persecuted in Rome them. And the Roman emperor Constantine declared Sunday to be a day of rest in 321. Most of the biblical emphasis a Sunday sabbath comes from the fact that Easter was celebrated on Sunday, and a few verses saying that religious holiday observance didn't matter.Some Catholic Catechisms mentions that there is no biblical support for a sabbath on Sunday, and justify it by saying that the church has the authority to change religious holidays. I'm not sure if this is atypical compared to most catechisms, I am not very familiar with Catholic theology. Explanation for change:http://www.religioustolerance.org/sabbath.htm http://www.religioustolerance.org/sabbath.htm Catholic Catechism excerpts: http://www.biblestudy.org/godsrest/catholic-protestant-confessions-about-bible-sabbath.html http://www.biblestudy.org/godsrest/catholic-protestant-confe... The site is definitely biased, but it has a nice collection of excepts from christian and catholic doctrines.