The writings of Ellen White, a prophet of the Seventh Day Adventist church, teach that those who worship on Sunday will receive the mark of the beast and will reject the seal of God. In other words, the vast majority of Christians are doomed for worshipping our Lord on Sunday instead of Saturday.

Here are her writings:

Reception of Mark of the Beast Future—The change of the Sabbath is the sign or mark of the authority of the Romish church. Those who, understanding the claims of the fourth commandment, choose to observe the false sabbath in the place of the true, are thereby paying homage to that power by which alone it is commanded. The mark of the beast is the papal sabbath, which has been accepted by the world in the place of the day of God’s appointment. Ev 234.1
No one has yet received the mark of the beast. The testing time has not yet come. There are true Christians in every church, not excepting the Roman Catholic communion. None are condemned until they have had the light and have seen the obligation of the fourth commandment. But when the decree shall go forth enforcing the counterfeit sabbath, and the loud cry of the third angel shall warn men against the worship of the beast and his image, the line will be clearly drawn between the false and the true. Then those who still continue in transgression will receive the mark of the beast. Ev 234.2
With rapid steps we are approaching this period. When Protestant churches shall unite with the secular power to sustain a false religion, for opposing which their ancestors endured the fiercest persecution, then will the papal sabbath be enforced by the combined authority of church and state. There will be a national apostasy, which will end only in national ruin.—Manuscript 51, 1899. Ev 235.1
When Seal of God Is Refused—If the light of truth has been presented to you, revealing the Sabbath of the fourth commandment, and showing that there is no foundation in the Word of God for Sunday observance, and yet you still cling to the false sabbath, refusing to keep holy the Sabbath which God calls “My holy day,” you receive the mark of the beast. When does this take place? When you obey the decree that commands you to cease from labor on Sunday and worship God, while you know that there is not a word in the Bible showing Sunday to be other than a common working day, you consent to receive the mark of the beast, and refuse the seal of God.—The Review and Herald, July 13, 1897. Ev 235.2
As a Result of Disregard of Light—God has given men the Sabbath as a sign between Him and them, as a test of their loyalty. Those who, after the light regarding God’s law comes to them, continue to disobey and exalt human laws above the law of God in the great crisis before us will receive the mark of the beast.—Letter 98, 1900. Ev 235.3
Caution in Presenting the Sunday Question—[We are] not to provoke those who have accepted this spurious sabbath, an institution of the Papacy in the place of God’s holy Sabbath. Their not having the Bible arguments in their favor makes them all the more angry and determined to supply the place of arguments that are wanting in the Word of God by the power of their might. The force of persecution follows the steps of the dragon. Therefore great care should be exercised to give no provocation.—Letter 55, 1886. Ev 235.4
Let the Truth Do the Cutting—Satan’s efforts against the advocates of the truth will wax more bitter and determined to the very close of time. As in Christ’s day the chief priests and rulers stirred up the people against Him, so today the religious leaders will excite bitterness and prejudice against the truth for this time. The people will be led to acts of violence and opposition which they would never have thought of had they not been imbued with the animosity of professed Christians against the truth. Ev 236.1
And what course shall the advocates of truth pursue? They have the unchangeable, eternal Word of God, and they should reveal the fact that they have the truth as it is in Jesus. Their words must not be rugged and sharp. In their presentation of truth they must manifest the love and meekness and gentleness of Christ. Let the truth do the cutting; the Word of God is as a sharp, two-edged sword, and will cut its way to the heart. Those who know that they have the truth should not, by the use of harsh and severe expressions, give Satan one chance to misinterpret their spirit.—The Review and Herald, October 14, 1902. Ev 236.2
A Call to Enlighten the Masses—I have been shown that Satan is stealing a march upon us. The law of God, through the agency of Satan, is to be made void. In our land of boasted freedom, religious liberty will come to an end. The contest will be decided over the Sabbath question, which will agitate the whole world. Ev 236.3
Our time for work is limited, and God calls us as ministers and people to be minutemen. Teachers as wise as serpents and as harmless as doves must come to the help of the Lord, to the help of the Lord against the mighty. There are many who do not understand the prophecies relating to these days, and they must be enlightened.—Letter 1, 1875. Ev 237.1


Is Ellen White correct? Are those that worship our Lord on Sunday doomed to receive the mark of the beast?

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