Acts 20:7, 1 Corinthians 16:2, Colossians 2:16-17, and Revelation 1:10 indicate that, even during New Testament times, the Sabbath is no longer binding and that Christians are to worship on the Lord’s day, Sunday, instead.
The early Church Fathers compared the observance of the Sabbath to the observance of the rite of circumcision, and from that they demonstrated that if the apostles abolished circumcision (Gal. 5:1-6), so also the observance of the Sabbath must have been abolished. The following quotations show that the first Christians understood this principle and gathered for worship on Sunday.
From The Didache
"But every Lord’s day . . . gather yourselves together and break bread, and give thanksgiving after having confessed your transgressions, that your sacrifice may be pure. But let no one that is at variance with his fellow come together with you, until they be reconciled, that your sacrifice may not be profaned" (Didache 14 [A.D. 70]).
From The Letter of Barnabas
"We keep the eighth day [Sunday] with joyfulness, the day also on which Jesus rose again from the dead" (Letter of Barnabas 15:6–8 [A.D. 74]).
Balderdash!
Acts 20:7 is describing a Havdalah (after the Sabbath) meal. If you notice Paul is speaking until midnight which would be the first part of the first day of the week....having begun at sundown. He is expecting to leave the next morning (Sunday) a normal work and travel day. Acts 20:7 This says nothing about a religious service.....it is a meal!
1 Corinthians 16:2
This is a collection for the poor in Jerusalem. See Romans 15:25 and Acts 11:28-30. This is not in any way shape or form a religious service.
Colossians 2:16
See post #20.
Revelation 1:10
What in the world does this have to do with Sunday? The Lord's day was nothing more than the Apostle John being brought forward in vision to Joel 2:31," The Terrible Day of The Lord." Remember, John was in the spirit [Revelation 4:2]....not sitting on the beach at Patmos some Sunday morning!
From The Didache
This is not scripture....it is tradition. That is the main problem with your Magesterium....it is mostly human tradition.
Explain Matthew 28:1 to me, convincing me that our Saviour did not rise on Sabbath afternoon about sundown. I realize that you cannot do this as it destroys your entire theology. You also cannot show me a specific command by Jesus or the Apostles to ignore the Sabbath and celebrate "The Day of the Sun."