The substitution of the laws of men for the law of God, the exaltation, by merely human authority, of Sunday in place of the Bible Sabbath, is the last act in the drama. When this substitution becomes universal, God will reveal Himself. He will arise in His majesty to shake terribly the earth. He will come out of His place to punish the inhabitants of the world for their iniquity, and the earth shall disclose her blood, and shall no more cover her slain.--Testimonies, vol. 7, p. 141.

“The Sunday movement is now making its way in darkness. The leaders are concealing the true issue, and many who unite in the movement do not themselves see whither the under-current is tending.” Review and Herald December 11, 1888

Great Controversy 1888, p589

Chapter XXXVI - The Impending Conflict—Its Causes

[Satan] “While appearing to the children of men as a great physician who can heal all their maladies, he will bring disease and disaster, until populous cities are reduced to ruin and desolation.”

“Even now he is at work. In accidents and calamities by sea and by land, in great conflagrations, in fierce tornadoes and terrific hail-storms, in tempests, floods, cyclones, tidal waves, and earthquakes, in every place and in a thousand forms, Satan is exercising his power.”

Satan puts his interpretation upon events, and they think, as he would have them, that the calamities which fill the land are a result of Sunday breaking. Thinking to appease the wrath of God these influential men make laws enforcing Sunday observance.--10MR 239 (1899).  {LDE 129.4}

It is on the law of God that the last great struggle of the controversy between Christ and His angels and Satan and his angels will come, and it will be decisive for all the world.... Men in responsible positions will not only ignore and despise the Sabbath themselves, but from the sacred desk will urge upon the people the observance of the first day of the week, pleading tradition and custom in behalf of this man-made institution. They will point to calamities on land and sea—to the storms of wind, the floods, the earthquakes, the destruction by fire—as judgments indicating God’s displeasure because Sunday is not sacredly observed. These calamities will increase more and more, one disaster will follow close upon the heels of another; and those who make void the law of God will point to the few who are keeping the Sabbath of the fourth commandment as the ones who are bringing wrath upon the world. This falsehood is Satan’s device that he may ensnare the unwary.—The Southern Watchman, June 28, 1904. { ChS 155.2}

 It is no time to be ashamed of our faith. We are a spectacle to the world, to angels, and to men. The whole universe is looking with inexpressible interest to see the closing work of the great controversy between Christ and Satan. At such a time as this, just as the great work of judging the living is to begin, shall we allow unsanctified ambition to take possession of the heart? What can be of any worth to us now except to be found loyal and true to the God of heaven? What is there of any real value in this world when we are on the very borders of the eternal world? What education can we give to the students in our schools that is so necessary as a knowledge of "What saith the Scripture"?  {5T 526.1}