Exodus 31:16 says...
Keeping the sabbath is still suppose to be kept by anyone who believes in Jesus Christ.
This is supported by Mark 2:27-28. It says..
The sabbath was created for man, and not man for the sabbath.
and that Jesus is Lord also of the sabbath.
Now, notice that it did not say anything about jews, muslims, white, blacks, hispanics, yellow people, green people. It said man. If you have any type of extention (great or small) to do #1 with, this is for you. Now, women, I didn't forget about you. Genesis 2:22 states that you are part of man, thats where the origin of your title "wo-man" comes from, so this includes you too!
Matthew 5:27-28 says...
Think not that I am come to destroy the law, or the prophets: I am not come to destroy, but to fulfil.
For verily I say unto to you, till heaven and earth pass away, one jot or one tittle shall in no wise pass from the law, till all be fulfilled.
1. Did heaven and earth pass away?
2. Has all prophecies been for filled(including the return of the Messiah)?
NO~ Then it still apply.
now if you read this and still don't think so, you will then fall in the way of the 1st horseman of the apocalypse. Which is spritual deception. Revelation 6:2.