Exodus 31:16 Wherefore the children of Israel shall keep the sabbath, to observe the sabbath throughout their generations, for a perpetual covenant.
[The Great Controversy pp 437>438] Concerning the Sabbath, the Lord says, further, that it is “a sign, ... that ye may know that I am the Lord your God.” [Ezekiel 20:20.] And the reason given is, “For in six days the Lord made heaven and earth, and on the seventh day he rested, and was refreshed.” [Exodus 31:17.] “The importance of the Sabbath as the memorial of creation is that it keeps ever present the true reason why worship is due to God,” because he is the Creator, and we his creatures.
“The Sabbath therefore lies at the very foundation of divine worship; for it teaches this great truth in the most impressive manner, and no other institution does this. The true ground of divine worship, not of that on the seventh day merely, but of all worship, is found in the distinction between the Creator and his creatures. This great fact can never become obsolete, and must never be forgotten.” It was to keep this truth ever before the minds of men, that God instituted the Sabbath in Eden.
And so long as the fact that he is our Creator continues to be a reason why we should worship him, so long the Sabbath will continue as its sign and memorial. Had the Sabbath been universally kept, man's thoughts and affections would have been led to the Creator as the object of reverence and worship, and there would never have been an idolater, an atheist, or an infidel.
Romans 1:20 For the invisible things of him from the creation of the world are clearly seen, being understood by the things that are made, even his eternal power and Godhead; so that they are without excuse.
May God add His blessing to the study of His word. “Good night” and God bless!