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From 1844 to 1851 the group taught the “shut door” doctrine, based on Jesus’ parable of the ten virgins. Anyone who had not accepted the Adventist message by the time Jesus entered the Holy of Holies was to be shut out permanently, as were the five foolish virgins. Cut off from the Bridegroom, they could not join the Adventists or have any hope of eternal life. Ellen White not only approved and taught this doctrine, but her first vision experience was largely responsible for its being received by the Adventist group (Brinsmead, Robert, D., Judged by the Gospel: A Review of Adventism, pp. 130–33).
By 1846 the group had adopted the Seventh-day Baptists’ view that the Saturday Sabbath must be observed by Christians. A highly elevated form of this doctrine, together with the doctrine of the Investigative Judgment, became the hallmarks of Seventh-day Adventism. . .
Ellen White never held official title as the head of the church, but was one of its founders and acknowledged spiritual leader. She rather disingenuously declined to claim the title of “prophet,” calling herself a “messenger” instead (Damsteegt, P.G., et. al., Seventh-day Adventists Believe. . ., p. 224). But she claimed to have the “spirit of prophecy,” and that her messages were direct from God for the guidance and instruction of the church. With her knowledge and consent others called her a prophet, and even “the Spirit of Prophecy” (Barnett, Maurice, Ellen G. White & Inspiration, pp. 5–17). Having only a third grade education, Ellen White said for years she was unable to read, bolstering the claim that her beautiful prose was inspired by God. However, it has been discovered that she not only read, but plagiarized other Christian authors throughout virtually all her writings. The sad facts of this matter have been thoroughly and indisputably established in several books. (e.g., see; Rea, Walter, The White Lie; and Judged by the Gospel, pp. 361–83). Ellen White died in 1915 at age eighty-eight.
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“…[T]he divine institution of the Sabbath is to be restored… The delivering of this message will precipitate a conflict that will involve the whole world. The central issue will be obedience to God's law and the observance of the Sabbath.…Those who reject it will eventually receive the mark of the beast” (Ibid., pp. 262–63).
In one of her most revered works, Ellen White wrote that Sabbath observance would be the “line of distinction” in the “final test” that will separate God’s end-time people who “receive the seal of God” and are saved, from those who “receive the mark of the beast” (The Great Controversy Between Christ and Satan, p. 605).
Describing a supposed vision direct from God, Ellen White wrote, “I saw that the Holy Sabbath is, and will be, the separating wall between the true Israel of God and unbelievers” (Early Writings, p. 33; emphasis added). She also wrote of some Adventists failing to understand that “Sabbath… observance was of sufficient importance to draw a line between the people of God and unbelievers” (Ibid., p. 85).
The Investigative Judgement: “In 1844…[Christ] entered the second and last phase of His atoning ministry. It is a work of investigative judgement which is part of the ultimate disposition of all sin… It also makes manifest who among the living are abiding in Christ, keeping the commandments of God and the faith of Jesus, and in Him, therefore, are ready for translation into His everlasting kingdom. This judgement vindicates the justice of God in saving those who believe in Jesus. It declares that those who have remained loyal to God shall receive the kingdom” (SDA’s Believe…, p. 312; emphasis added).