But there is no union between the Prince of light and the prince of darkness, and there can be no union between their followers. When Christians consented to unite with those who were but half converted from paganism, they entered upon a path which led further and further from the truth. Satan exulted that he had succeeded in deceiving so large a number of the followers of Christ. He then brought his power to bear more fully upon these, and inspired them to persecute those who remained true to God. None understood so well how to oppose the true Christian faith as did those who had once been its defenders; and these apostate Christians, uniting with their half-pagan companions, directed their warfare against the most essential features of the doctrines of Christ. (GC 45.1) MC VC

It required a desperate struggle for those who would be faithful to stand firm against the deceptions and abominations which were disguised in sacerdotal garments and introduced into the church. The Bible was not accepted as the standard of faith. The doctrine of religious freedom was termed heresy, and its upholders were hated and proscribed. (GC 45.2) MC VC

After a long and severe conflict, the faithful few decided to dissolve all union with the apostate church if she still refused to free herself from falsehood and idolatry. They saw that separation was an absolute necessity if they would obey the word of God. They dared not tolerate errors fatal to their own souls, and set an example which would imperil the faith of their children and children’s children. To secure peace and unity they were ready to make any concession consistent with fidelity to God; but they felt that even peace would be too dearly purchased at the sacrifice of principle. If unity could be secured only by the compromise of truth and righteousness, then let there be difference, and even war. (GC 45.3) MC VC