Negative. The burden of proof lies with the body of believers who teach contrary to God's Law. Show me one line of scripture sanctifying any other day of the week in scripture vice the Sabbath.
"You may read the Bible from Genesis to Revelation, and you will not find a single line authorizing the sanctification of Sunday. The Scriptures enforce the religious observance of Saturday, a day which we never sanctify." Cardinal Gibbons (for many years head of the Catholic Church in America), The Faith of Our Fathers (92d ed., rev.; Baltimore: John Murphy Company), p.89.
And, for what seems like an endless number of times, posts and threads you have offered to contest it, Catholics still celebrate the Resurrection of the Lord on Sunday and all the sabbatarians in the world won’t change that and won’t prove beyond any doubt that it is “in contradiction to the Holy Scriptures.”
Answer a) Where is the command to do this?
Ansewer b) Why not celebrate it on the actual day is occurred, i.e. 3 Nisan 17?
Answer c) Where is the command to repeal the 4th Commandment?
For one thing, the Catholic Church is not “Rome”.
You got that right.
You keep going on and on about whether the Church has the authority to celebrate its Liturgy on the first day of the week vice the last. I'll posit another question at you from Scripture... where did Peter and the Apostles get the authority to do away with circumcision at the Council of Jerusalem?
Now I'll answer it for you. Circumcision was the sign of the old covenant. Baptism is the sign of the new. In the New Covenant, whatever the Apostles held bound was held bound and whatever they loosed was loosed (Matt 16:17-19). All authority in Heaven and Earth was given to Christ and He empowered the Apostles. Who are you to say the Church doesn't have the authority God promised?