Moreover I also gave them my Sabbaths, to be a sign between them and Me, that they might know that I am the LORD who sanctifies them.(Ezekiel 20.12)
The Sabbath was a covenantal sign that was to 'mark out' the
people of God as distinct from the Gentile nations. The Sabbath therefore was
not universal, it was not a law that was to be applied in all places and at all
times. This is actually fairly clear when one reads the Old Testament and it is
even explicit in places like Ezekiel 20.12. It was a covenantal sign and as
such was only binding upon those in union with Jehovah.
But this presents a real dilemma for some Christian groups
today.