Summations Only

You are right Ringo; I am against any practice that is
not Biblical.

Like creationism. I was just looking at a thread called Show me why Sunday is the day. You might be interested.

Ringo, Sunday is simply referred to as the "first day of
the week."Even decades after the death of Christ it was still
referred to as the "first day of the week."The Catholic Encyclopedia states that Sunday worship
was initiated by the sole authority of the RCC. They state
correctly that the NT does not support Sunday worship.The CE states as fact that all these other churches
followed the example of the RCC. This they assert is
clear proof of the RCC God given right to Trump clear
Biblical teachings.Both Rome and the RCC have sentenced many to death
for not working on the Seventh Day Sabbath and resting
on Sunday.Sunday worship is a mark of the Holy Roman Empire.Both of these beasts are discussed in Revelations 13.

Where does the Catholic Encyclopedia or Catholic Church say that? A citation, please.

Is your interpretation of the Bible infallibly correct?

So what "church" do you belong to? Or are you your own "church" because you are infallibly led by the Holy Spirit?

Yes, "Yom Rishon" ("First Day" -- sorry for transliterating rather than futzing with HTML entity codes for Hebrew). And everybody knows which day is Yom Shabbath even if they prefer to use the Sun's Day (early Catholic missionaries were infamous for assimilating the pagan religions -- both their sites and their gods). No, Sunday worship was already well established before the Holy Roman Empire formed out of the divisions circa 900 CE of Charles the Great's (AKA Charlemagne) Carolingian Empire formed in 800 CE (basing that on the date of his coronation as Emperor). BTW, that was the First Reich (800 - 1806, hence Hitler's conceit that his Third Reich would last 1000 years), the Second Reich was created at the end of the Franco-Prussian War in 1870 (and ended with defeat in WWI), and we all should know about the Third Reich.The damage had already been done long before the Holy Roman Empire. 
BTW, condolences on your Great Disappointment.

Just out of curiosity, how do you know what the "first day" of the creation week was?I can see how an extremely loose interpretation of the Old Testament could give Bishop Usher the year but how could he get it down to the month, day and even the hour? (I know there's a lot of woulda-colulda-shoulda nonsense about equinoxes, etc. but the Bible doesn't support any of that.)It seems to me that there are vast gaps in continuity that make if impossible to say with any confidence what day is THE sabbath in the present.

As a Last Thursdayist none of this matters to me. But lord help those heretic Last Tuesdayists.

This Catholic article contradicts your claim:What the Early Church Believed: Sabbath or Sunday? | Catholic Answers

You guys are being too legalistic. To sabbath means to rest in Christ. Any day can be a sabbath, but one must take the time seriously.

Phat, point out to me in the Bible where Jesus said that
any day is the Sabbath.Point it out to me where any of the Apostles said that
any day can be the Sabbath.The Bible is very specific about which day is the
Sabbath.Jesus said that to break the least of His commandments,
or to teach others to do so, is the same as breaking
them all.To disobey a direct command from God is not a good
thing.I spent nine years in an orphanage. During this nine
years we attended a Church of Christ three times a
a week.I believed that Sunday had replaced the Seventh Day
Sabbath with all my heart.It is extremely difficult to challenge ourselves as to why
we believe what we do.As for being legal, what is wrong with that?Do you want the deeds to your house and car to be
legal?You seem to think that those keeping the Saturday
Sabbath are trying to earn salvation, rather than trying
to obey God.Do you think that those who don't steal or murder are
trying to be legalistic?How about those who honor their parents. Are they
trying to be legalistic?Don't you think that it sounds cheap and tacky to single
out one Commandment and say that those who obey it
are somehow inferior to those who obey the other
Commandments.

Ringo, the Jews have kept meticulous records.The Jews have records that show which day Christ
kept.

So show us the records from the year 4004 B.C.E.
​ Jesus was Jewish. He obviously kept the Sabbath (Saturday). The question is, How did HE know that the Jews were keeping the "right" day? Where are the records going back to the year 4004 B.C.E.?

It certainly does not. "Christ" has nothing to do with it.