REV 22:14 Blessed are they that do HIS commandments, that they may have right to the tree of life, and may enter in through the gates into the city . This is what HE says about those out side the city, That are not keeping HIS commandments,
For without are dogs, and sorcerers, and whoremongers, and murderers, and idolaters, and whosoever loveth and maketh a lie.
Correct.
The error you make is that the commandments for the believer are the same as the commandments for ancient Israel.
Or, you limit the commandments to the Ten Commandments.
There are many commandments that the believer observes, because he is being conformed to the image of Christ.
It is YOUR claim that the Saturday Sabbath is included in these commandments that the righteous follow, and that they still apply today.
I have no more concern for the Sabbath than for physical circumcision, because days and diet are not part of the commandments for the NT believer.
Colossians 2:16-17 addresses the calendar issues, and other sections address the meat issue.
By the way, folks, SDAs consider drinking any alcohol whatsoever as sin. When I told one SDA that Jesus drank wine, he said that was a blasphemous claim. I found this ironic, since he was smoking cigarettes and died of lung cancer later. However, the SDAs basically told him that he would lose his salvation if he didn't quit smoking. Later he quit, when he was on oxygen and couldn't smoke anymore. So, I'm pretty sure he died thinking he was saved.
And, I have been told by SDA pastors that smokers are told they must quit or they will be disfellowshipped. Actually I think smoking is a sin, but I wouldn't disfellowship someone for it.
Anyways, to get back to the topic, realize that Sabbathkeepers view the word "commandments" with an emphasis on the Sabbath, rather than all of the teachings for the Christian under the New Covenant. Days and diet would be very important to them.