6. Sunday cannot be the Lord’s Day because Sunday-keeping
began when the Roman Catholic Church changed the Sabbath from the seventh day to the first day of the week, in the fourth century so as to please the first day sun-worshipping pagans that were flooding into the church as a result of the Roman emperors conversions to Christianity. The Bishops at Rome used the excuse that since Jesus rose on the first day of the week we will honor His resurrection, an excuse used by Sunday-keepers even today. Did Jesus give the first day to honor His resurrection? Absolutely not. What did He give to honor His resurrection? Baptism. We celebrate His death when we die to sin; we celebrate His burial when we lay the old man of sin in the watery grave, and we celebrate His resurrection by coming up out of the waters, a new creature in Christ.
And that day was the preparation, and the sabbath drew on. Luke 23:54
RichardVaughn