Real Christians are free to do whatever they desire on whatever day. If some want to do some sort of a Old Covenant ritual or observance at any time - they are free to do so....and others are free not to.
The Old Covenant is a shadow of the real thing which is Christ Himself. Use the things in the Old Covenant to see Jesus fulfilling them.
Where the perversion of the gospel of the grace of Christ comes in is when people say "If you don't observe the things in the Old Covenant - then you are not obeying God". This is anti-Christ and yes this applies to the Jewish Sabbath and feast days in the Old Covenant as well.
So, to those that like to do a ritual or observance on Friday nights and Saturdays - have fun! ...and the Lord bless you and keep you. May the Lord shine His face on you. May the Father give unto you a spirit of wisdom and revelation in the knowledge of the Lord Jesus Christ.
This sounds nice and makes sense but is it accurate?
Lets examine it.
you said "
The Old Covenant is a shadow of the real thing which is Christ Himself. Use the things in the Old Covenant to see Jesus fulfilling them."
Given the topic it is clear that you are suggesting that the 7th day Sabbath is simply Old Covenant. But if we examine the origin of the Sabbath it is clearly before the Mosaic covenant, which goes without saying poses problems to your assertion.
The commandment as seen in the Old Covenant reads as such:
Exo 20:8 Remember the sabbath day, to keep it holy.
Exo 20:9 Six days shalt thou labour, and do all thy work:
Exo 20:10 But the seventh day is the sabbath of the LORD thy God: in it thou shalt not do any work, thou, nor thy son, nor thy daughter, thy manservant, nor thy maidservant, nor thy cattle, nor thy stranger that is within thy gates:
Exo 20:11 For in six days the LORD made heaven and earth, the sea, and all that in them is, and rested the seventh day: wherefore the LORD blessed the sabbath day, and hallowed it.
IT is important to take note that the commandment is a call to keep it in remembrance. But the reason is not stated to be because of the manna in exodus 16 or their freedom from Egypt. The Reason as seen in verse 11 states that its origin and meaning is found in the 7th day of creation at the beginning.
Now keeping in mind that Genesis which records this event was written by Moses as part of the law and not a separate entity. So it reads:
Gen 2:1 Thus the heavens and the earth were finished, and all the host of them.
Gen 2:2 And on the seventh day God ended his work which he had made; and he rested on the seventh day from all his work which he had made.
Gen 2:3 And God blessed the seventh day, and sanctified it: because that in it he had rested from all his work which God created and made.
So it is clear that this 7th day Sabbath was made before sin even entered into the world. well before the covenant given to Israel through Moses. In fact Jesus claimed to be Lord of this Sabbath.
Mar 2:27 And he said unto them, The sabbath was made for man, and not man for the sabbath:
Mar 2:28 Therefore the Son of man is Lord also of the sabbath.
Jesus is in fact the creator and thus the maker of the Sabbath as the commandment proves without doubt that the Sabbath is tied directly to creation.
Joh 1:1 In the beginning was the Word, and the Word was with God, and the Word was God.
Joh 1:2 The same was in the beginning with God.
Joh 1:3 All things were made by him; and without him was not any thing made that was made.
Col 1:14 In whom we have redemption through his blood, even the forgiveness of sins:
Col 1:15 Who is the image of the invisible God, the firstborn of every creature:
Col 1:16 For by him were all things created, that are in heaven, and that are in earth, visible and
So Jesus rightly claims to be Lord of the Sabbath which pointed back not forward to Jesus as creator. This is still true today and will always be true. There will never be a time that Jesus is not the creator.
And this begs the question, Did Jesus die to do away with His own works or the works of the Devil. And if the Sabbath as clearly seen in scripture is the work of Jesus then who's work is it to disregard it or make it of no importance?