I have tested you and have found your ideas wanting as the great preponderance of Christian thought and teachings for the last 2000 plus years is different from what you now profess.
It is not what goes into the mouth, it is what comes out that displeases the Lord is what I have heard. I hear you folks don't drink alcohol either, but the Lord Jesus surely did as he went about his days travelling around preaching. Wine, the "fruit of the vine" was the standard drink for all.
In Col 2:16-17 it is written:
"Therefore let no one pass judgement on you in questions of food or drink or with regard to a festival or a new moon or a Sabbath. These are only a shadow of what is to come; but the substance belongs to Christ".
"On the first day of the week, when we were gathered together to break bread, Paul talked with them..." [Acts 20:7] What was breaking of the bread? Nothing less than the Mass, the worship by Christians, and it was taking place on the first day of the week.
In 1 Cor 16 it also says: "Now about the collection for the Lord’s people: Do what I told the Galatian churches to do.
2On the first day of every week, each one of you should set aside a sum of money in keeping with your income, saving it up, so that when I come no collections will have to be made.
3Then, when I arrive, I will give letters of introduction to the men you approve and send them with your gift to Jerusalem.
4If it seems advisable for me to go also, they will accompany me".
So if Christians were worshipping on Saturday, why would St. Paul be saying to take up the collection on Sunday? This makes no sense and it proves my point of Sunday worship, not your harking back to some OT principle..
The early Christian writers also spoke of Sunday worship, to wit:
"Assemble on the Lord's Day, and break bread and offer the Eucharist; but first make confession of your faults, so that your sacrifice may be a pure one". [The Didache 14:1]
Also:
"And we too rejoice in celebrating the eighth day; because that was when Jesus rose from the dead..." [Epistle of Barnabas 15] (St. Barnabas in using the phrase "the eighth day" was referring to Sunday).
Sometime before 110 A.D., St. Ignatius of Antioch wrote to the Magnesians: "We have seen how former adherents of the ancient customs have since attained to a new hope; so that they have given up keeping the Sabbath,
and now order their lives by the Lord's Day instead - the Day when life first dawned for us, thanks to Him (Jesus) and His death. [Epistle to the Magnesians 9]
So we know that as baptism replaced circumcision (Col 2:11-12) for Christians, so does Sunday replace Saturday. Observance of the Lord's Day is not out of the ordinary, but is exactly what was done by all Christians from the very beginning. Worshipping on Sunday is not some "mark of the beast" but the mark of the Christian.