The Sabbath may very well be the most important doctrine in the Bible since the creation of the world, and certainly after God separated the Hebrew people to himself.
Friends, the REST which the Sabbath represents is the PROMISE of the gospel. In fact, the “gospel is the power God that gets us (through faith) into that place of peace and rest with God.
Therefore being justified by faith, we have peace with God through our Lord Jesus Christ: By whom also we have access by faith into this grace wherein we stand, and rejoice in hope of the glory of God.–Romans 5:1-2 KJV
This is why Hebrews 4 can say “we who believe HAVE entered God”s rest” 4:3.
At the temptation in the garden of Eden our first parents traded the good/perfect work, (that God allowed them to rest in,) for their own work. The Serpent criticized God’s magnificent creation and paradise, and tricked Eve and her husband into their own plan of creation: “you can be like [better than] God…”
At the Appointed time…:
ALL THINGS are delivered unto me of my Father… Come unto me, all ye that LABOUR and are heavy laden, and I WILL GIVE YOU REST. Take my yoke upon you, and learn of me; for I am meek and lowly in heart: and YE SHALL FIND REST unto your souls. For my yoke is easy, and my burden is light.–Matthew 11:27-30 KJV
For we which HAVE BELIEVED DO ENTER INTO REST, as he said, As I have sworn in my wrath, if they [the unbelievers] shall [not] enter into my rest: although the works were finished from the foundation of the world. [The Serpent lied, we can’t outdo our Creator. After the 6th day God’s glorious work was finished]– Hebrews 4:3 KJV
FINALLY AFTER MANKIND’S FAILURE
And the seventh angel sounded; and there were great voices in heaven, saying, The kingdoms of this world are become the kingdoms of our Lord, and of his Christ; and he shall reign for ever and ever.– Revelation 11:15 KJV
Peace I leave with you, my peace I give unto you: not as the world giveth, give I unto you…–John 14:27 KJV