And again I ask you, as I have many times, where is the command for anyone to keep the Sabbath before Exodus? And where is the command for anyone besides Israel to observe the Sabbath? Where does Jesus or one of the Apostles command us to keep the Sabbath? The entire point of Hebrews is to not be chained to the law and that Christ is our Sabbath rest. No one can come to God without doing so through Christ's sacrifice, so when you say we do not entire our Sabbath rest through Christ, you are not quite getting it. Try reading Hebrews again, but try taking off the SDA spectacles off before you do so.
Every admonition to keep the commandments of God, is an admonition to keep also the fourth commandment of God. There is nowhere in the bible that anyone ever says anything about keeping only some of the commandments of God. Perhaps I am not the one who needs to take off a pair of preconception glasses.
Show the scriptures that say entering into Christ's rest means there is no longer a Sabbath. This would directly contradict the words of Christ in relation to Him not coming to change the law. Lets look at the verses in question.
Heb 4:1 Let us therefore fear, lest, a promise being left us of entering into his rest, any of you should seem to come short of it.
2 For unto us was the gospel preached, as well as unto them: but the word preached did not profit them, not being mixed with faith in them that heard it.
3 For we which have believed do enter into rest, as he said, As I have sworn in my wrath, if they shall enter into my rest: although the works were finished from the foundation of the world.
4 For he spake in a certain place of the seventh day on this wise, And God did rest the seventh day from all his works.
5 And in this place again, If they shall enter into my rest.
6 Seeing therefore it remaineth that some must enter therein, and they to whom it was first preached entered not in because of unbelief:
7 Again, he limiteth a certain day, saying in David, To day, after so long a time; as it is said, To day if ye will hear his voice, harden not your hearts.
8 For if Jesus had given them rest, then would he not afterward have spoken of another day.
9 There remaineth therefore a rest to the people of God.
The problem being addressed in the above scriptures is a lack of faith. You will notice that the writer says that the Jews also had the gospel preached to them. You know, all those sacrifices of the sanctuary and it's services, which represented Christ. Many of the Jews did not believe, therefore they could not enter into God's rest.
The seventh day Sabbath is mentioned in the above scriptures as an example of that rest. There is no indication anywhere that it is being done away with. The Jews had a problem keeping the Sabbath, and the rest of the law, because of unbelief. They never understood or believed God, that the sacrifices representing Christ saved them, so they tried to keep God's law in order to be saved, instead of because they already were saved. Which thing is impossible.
The Sabbath has not lost it's significance since Christ died for the ungodly, to the contrary, it's significance has increased. Now it is more than the memorial of creation, and resting by faith in the power of Him who created heaven and earth and all that is in it, including us. Now it is also resting by faith in the power of Him who redeemed us, and is able to make us new creatures in Christ Jesus. For just as God blessed and sanctified the seventh day, as only God can, so now has He also blessed and sanctified us sinners in and through His Son Jesus Christ. The Sabbath is a memorial of God's creation, and his recreation in us. It has not lost it's significance or been changed, and there is no scripture that teaches it has. It's meaning remains the same. Thus it will be observed in heaven also.Isa 66:22 For as the new heavens and the new earth, which I will make, shall remain before me, saith the LORD, so shall your seed and your name remain.
23 And it shall come to pass, that from one new moon to another, and from one sabbath to another, shall all flesh come to worship before me, saith the LORD.
God established the seventh day Sabbath at creation. He reiterated it's importance to Israel by commanding it's observance with His own voice, and writing the command with His own finger. Christ kept, and taught proper Sabbath observance, and the bible conclusively states that it will be observed in the new heaven and new earth. It is certainly greater presumption on your part, to believe that no one payed it any attention at all from creation to it's command to the Jews, and to believe it has no significance now, than it is on my part to seriously doubt your presumption. Well, that is to say, I don't believe you at all.