Why the 1st Day "Sunday" Can NEVER be the Sabbath

"Alexander Campbell, that the Sabbath could not be changed "unless creation were gone through with again." 

It is conceivable that by that means the Sabbath could be changed to another day. But I conceive, or think I do at least, that we may go a step farther, and inquire whether there is any one day of the week to which the Sabbath could not be changed, or upon which the Sabbath could not be placed..... it be desired to change it to the first day, 

Q: can it be done? 

A: It cannot; 

----for the day on which creation was performed, would of

consequence and necessarily be the first day, and the same day cannot be both a working day and a rest-day. 

It matters not how small a portion of the day might be employed in the work, however small it might be, it would effectually destroy the possibility of its being made a rest-day. For, to be a rest-day, the whole of the day would have to be spent in rest.

In a great many instances we think the papal church has outdone every other system in the absurdity of its errors. But in this she has fairly outdone herself in absurdity. 

For of all days which can be conceived of, she has chosen the very one, and the only one, which is entirely shut out from all conceivable possibility of ever being made a Sabbath (I write it with reverence) even by the Lord Himself. For, as it is impossible for God to lie 

(...which God, that cannot lie, Titus 1:2), He cannot say that He rested a day upon which he had worked even a part of the day.

Consequently here again the man of sin has exalted himself above God, in adopting and passing off, solely upon his own authority (because all other authority is excluded), 

an institution which cannot by any possibility be true, and therefore how appropriately that one thing is pointed out as the "mark of the beast," 

and how well those are described as worshipers of the beast who, contrary to Scripture, reason, and all persuasion, will observe the institution above all else. 

And so God is just in declaring against them, and visiting upon them the plagues of His wrath; because the very thing that by ever possibility is excluded, the beast has adopted, and they with pains and penalties have enforced." 

A.T. Jones