Here are a few texts, but not all from
scripturalcatholic.com, including a few from the early church fathers that support Sunday as the primary day of worship. The disciples used Saturday to spread the gospel to nonbelievers but they worshipped and celebrated the Eucharist on Sunday.
scripturecatholic.com/sunday_worship.html. :compcoff:
Acts 20:7 - this text shows the apostolic tradition of gathering together to celebrate the Eucharist on Sunday, the “first day of the week.” Luke documents the principle worship was on Sunday because this was one of the departures from the Jewish form of worship.
1 Cor. 16:2 - Paul instructs the Corinthians to make contributions to the churches “on the first day of the week,” which is Sunday. This is because the primary day of Christian worship is Sunday.
Col. 2:16-17 - Paul teaches that the Sabbath was only a shadow of what was fulfilled in Christ, and says “let no one pass judgment any more over a Sabbath.”
Rev 1:10 - John specifically points out that he witnesses the heavenly Eucharistic liturgy on Sunday, the Lord’s day, the new day of rest in Christ.
Matt. 16:19; 18:18 - whatever the Church binds on earth is bound in heaven. Since the resurrection, Mass has been principally celebrated on Sunday.
*On the Lord’s own day, assemble in common to break bread and offer thanks, but first confess your sins so that your sacrifice may be pure." Didache, 14 (A.D. 90).
“If, therefore, those who were brought up in the ancient order of things have come to the possession of a new hope, no longer observing the Sabbath, but living in the observance of the Lord’s Day, on which also our life has sprung up again by Him and by His death–whom some deny, by which mystery we have obtained faith, and therefore endure, that we may be found the disciples of Jesus Christ, our only Master.” Ignatius, To the Magnesians, 9:1 (A.D. 110).
“Hence it is not possible that the rest after the Sabbath should have come into existence from the seventh of our God; on the contrary, it is our Saviour who, after the pattern of His own rest, caused us to be made in the likeness of His death, and hence also of His resurrection.” Origen, Commentary on John, 2:27 (A.D. 229).
“On the seventh day He rested from all His works, and blessed it, and sanctified it. On the former day we are accustomed to fast rigorously, that on the Lord’s day we may go forth to our bread with giving of thanks. And let the parasceve become a rigorous fast, lest we should appear to observe any Sabbath with the Jews, which Christ Himself, the Lord of the Sabbath, says by His prophets that ‘His soul hateth;’ which Sabbath He in His body abolished.” Victorinus, On the Creation of the World (A.D. 300).
“They did not care about circumcision of the body, neither do we. They did not care about observing Sabbaths, nor do we.” Eusebius, Church History, 1:4,8 (A.D. 312).
“Also that day which is holy and blessed in everything, which possesses the name of Christ, namely the Lord’s day, having risen upon us on the fourth of Pharmuthi (Mar. 30), let us afterwards keep the holy feast of Pentecost.” Athanasius, Epistle 9:11 (A.D. 335).