When will the Mark of the Beast become -- the Mark of the Beast?

And he shall speak great words against the most High, and shall wear out the saints of the most High, and think to change times and laws: ---- The earth also is defiled under the inhabitants thereof; because they have transgressed the laws, changed the ordinance, broken the everlasting covenant.
Daniel 7:24/Isaiah 24:5 

“But when Sunday observance shall be enforced by law, 

--and the world shall be enlightened concerning the obligation of the true Sabbath, 

--then whoever shall transgress the command of God, to obey a

precept which has no higher authority than that of Rome, will thereby honor popery above God. He is paying homage to Rome, and to the power which enforces the institution ordained by Rome. 

--He is worshiping the beast and his image. 

--As men then reject the institution which God has declared to be the sign of his authority, and honor in its stead that which Rome has chosen as the token of her supremacy, they will thereby accept the sign of allegiance to Rome—“the mark of the beast.” 

--And it is not until the issue is thus plainly set before the people, and they are brought to choose between the commandments of God and the commandments of men, that those who continue in transgression will receive “the mark of the beast.” 

E.G.W.