This Sabbath-keeping is not that Sabbath-keeping
Numbers 15: 32, 33:   "While the Israelites were in the wilderness, they found a man collecting pieces of wood on the Sabbath day.  Those who found him collecting wood brought him up to Moses and Aaron and the whole assembly. Verse 35, 36:  And Jehovah said to Moses:  "The man should be put to death without fail, and the whole assembly should stone him outside the camp."  So the whole assembly brought him outside the camp and stoned him so that he died, just as Jehovah had commanded Moses."
How far removed and different from the Sabbath-keeping of the ancient Israelites is the Sabbath-keeping of Seventh-Day Adventists?
As Friday sunset approaches, the Seventh-day Adventist mechanic has not completed the repairs of the vehicle of a man who has promised to take his family and children to visit the grandparents for the New Year's long weekend, in a distant City. As the sun drops below the horizon, what will the mechanic do?  Will he abandon the repair project, leaving the family bitterly disappointed and also the grandparents, or will he continue working past sunset, hoping that none of his Adventist church members will pass by and see him working and drag him out to be stoned? This Sabbath-keeping of Seventh-Day Adventists is not that Sabbath-keeping of the ancient Israelites.
A Seventh-Day Adventist commercial pilot's plane is delayed, and suddenly he realizes that he is flying directly into the Sabbath at 800 kilometers per hour.  What will he do?  Will he radio the nearest airport for permission to make an emergency landing?  Will he ditch his plane and passengers into the ocean rather than violate his Sabbath?  Or will he tell the co-pilot to take the controls and then quit his shift and abandon the flight deck altogether, leaving the plane without a co-pilot? Or will he carry on with his flight schedule as pilot and hope that when he lands some Seventh-Day Adventists will not see him leaving the plane in uniform and drag him away to be stoned?	  
This Sabbath-keeping of Seventh-Day Adventists is not that Sabbath-keeping of the ancient Israelites.
Multiply those examples by a million or millions of similar circumstances in the daily lives of Adventists around the Earth in order to perceive how incongruous to is to attempt to transpose and to transplant the ancient Israelite Sabbath-keeping where all members of that Society were submissive, knowledgeable and in harmony with that Sabbath-keeping and its sanctions into today's complex Society where there exists only one Seventh-Day Adventist on Earth for every 1000 humans on Earth, and where the vast majority of Earth's inhabitants are not in harmony with Adventist attempts of Sabbath-keeping.
While there are various religious groups apart from Seventh-Day Adventists on Earth today who also, like Adventists claim to be perpetuating the ancient Israelite Sabbath, and even though those groups are very much stricter in their Sabbath-keeping attempts, and who never prepare fellowship lunches on Saturday (sometimes called pot-lucks) or wash dishes, or sweep floors, and some who will not even flick on or off a light switch on their Sabbath, even the Sabbath-keeping of those very much stricter religious groups is not that Sabbath-keeping of the ancient Israelites.
One young Seventh-Day Adventist correspondent whose profile photo displays a broad beaming smile wrote to me saying that she is a Seventh-Day Adventist, and immediately proudly added her comment:  "I'm a Sabbath-keeper."  If someone would only inform her and explain to her that the frivolous attempts at Sabbath-keeping by Seventh-Day Adventists on Earth today does not at all perpetuate the Sabbath-keeping of the ancient Israelites.
This Sabbath-keeping is not that Sabbath-keeping. 
Is the attempt by the Seventh-Day Adventist church to perpetuate ancient Israel’s Sabbath-keeping merely a harmless belief and tradition, or does that attempt distort the spiritual priorities of Adventists such as the occasion when I arrived early at an Adventist public event held in an Adventist private school, and I sat down beside an elderly Adventist woman, telling her that I do not belong to any Christian church, and immediately she commenced preaching to me about keeping a Saturday Sabbath and she continued for a full thirty minutes, during my silence, without ever once mentioning the name of the Lord Christ, and as far as she is aware, until now, twenty years later, nobody has yet spoken to me about the Lord Christ.
Equally serious is the barrier/shield between Adventists and truth which their attempted Sabbath-keeping sets in place, deflecting away truth which is offered to them, preventing that truth from entering their ears, minds and hearts, such as the accurate and true meaning of the sign which His Holiness the Christ provided so that women and men can identify and recognize Him on Earth at His promised return to Earth: “Wherever the carcass is, the vultures will gather together”