a more sure word of Prophecy

I am the Lord your God; walk in my statutes, and keep my judgments, and do them; and hallow my sabbaths; and they shall be a sign between me and you, that ye may know that I am the Lord your God.Ezekiel 20:19, 20. OHC 343.1

The Sabbath was given to all mankind to commemorate the work of Creation. The great Jehovah, when He had laid the foundations of the earth, when he had dressed the whole world in its garb of beauty, and created all the wonders of the land and the sea, instituted the Sabbath day and made it holy. When the morning stars sang together, and all the sons of God shouted for joy, the Sabbath was set apart as God’s memorial. God sanctified and blessed the day in which he had rested from all His wondrous work.... OHC 343.2

As the tree of knowledge was placed in the midst of the Garden of Eden, so the Sabbath command is placed in the midst of the Decalogue. In regard to the fruit of the tree of knowledge, the restriction was made, “Ye shall not eat of it, ... lest ye die.” Genesis 3:3. Of the Sabbath God said, Ye shall not defile it, but keep it holy. “Remember the sabbath day, to keep it holy.” Exodus 20:8. As the tree of knowledge was the test of Adam’s obedience, so the fourth command is the test that God has given to prove the loyalty of all His people. OHC 343.3