For decades SDAs have been giving up doctrines that stand as the pillars of faith, such as:

• The nature of Christ; righteousness by faith; victory over sin.
• The Sanctuary, atonement, and the Investigative Judgment.
• The Spirit of Prophecy.
• The Three Angels' Messages (exposing the papacy, Babylon, apostate Protestantism, ecumenism, spiritualism, and the Sabbath-Sunday question; exalting the law of God, the health message, etc.).
• The true state of the dead.

Counsels to Writers and Editors, pp. 30-31

The passing of the time in 1844 was a period of great events, opening to our astonished eyes the cleansing of the sanctuary transpiring in heaven, and having decided relation to God’s people upon the earth, [also] the first and second angels’ messages and the third, unfurling the banner on which was inscribed, “The commandments of God and the faith of Jesus.” One of the landmarks under this message was the temple of God, seen by His truth-loving people in heaven, and the ark containing the law of God. The light of the Sabbath of the fourth commandment flashed its strong rays in the pathway of the transgressors of God’s law. The nonimmortality of the wicked is an old landmark. I can call to mind nothing more that can come under the head of the old landmarks.

The Upward Look, p. 152

In a representation which passed before me, I saw a certain work being done by medical missionary workers. Our ministering brethren were looking on, watching what was being done, but they did not seem to understand. The foundation of our faith, which was established by so much prayer, such earnest searching of the Scriptures, was being taken down, pillar by pillar. Our faith was to have nothing to rest upon--the sanctuary was gone, the atonement was gone....

Do you wonder that I have something to say, when I see the pillars of our faith beginning to be moved? Seductive theories are being taught in such a way that we shall not recognize them unless we have clear spiritual discernment.

Counsels to Writers and Editors, p 52.

As a people we are to stand firm on the platform of eternal truth that has withstood test and trial. We are to hold to the sure pillars of our faith. The principles of truth that God has revealed to us are our only true foundation. They have made us what we are. The lapse of time has not lessened their value.

The Great Controversy (1888), pp. 45-46

There is an alarming indifference in regard to the doctrines which are the pillars of the Christian faith. The opinion is gaining ground, that, after all, these are not of vital importance. This degeneracy is strengthening the hands of the agents of Satan, so that false theories and fatal delusions which the faithful in ages past imperiled their lives to resist and expose, are now regarded with favor by thousands who claim to be followers of Christ.

Selected Messages, Book 1, p. 204

I was shown a platform, braced by solid timbers—the truths of the Word of God. Someone high in responsibility in the medical work was directing this man and that man to loosen the timbers supporting this platform. Then I heard a voice saying, “Where are the watchmen that ought to be standing on the walls of Zion? Are they asleep? This foundation was built by the Master Worker, and will stand storm and tempest. Will they permit this man to present doctrines that deny the past experience of the people of God? The time has come to take decided action.”

Ibid., p. 196

My message to you is: No longer consent to listen without protest to the perversion of truth. Unmask the pretentious sophistries which, if received, will lead ministers and physicians and medical missionary workers to ignore the truth. Every one is now to stand on his guard. God calls upon men and women to take their stand under the blood-stained banner of Prince Emmanuel. I have been instructed to warn our people; for many are in danger of receiving theories and sophistries that undermine the foundation pillars of the faith.

Confrontation, p. 68

Vain philosophy, false creeds, and infidelity are on the increase. And many who bear the name of Christ's followers are, through pride of heart, seeking popularity, and are drifting away from the established landmarks. The plain commands of God in His Word are discarded because they are so plain and old-fashioned, while vain and vague theories attract the mind and please the fancy. In these scenes of church festivities there is a union with the world that the Word of God does not justify. Christians and worldlings are united in them.

Testimonies for the Church, Vol. 5, p. 137

Now is the time when we should closely connect with God, that we may be hid when the fierceness of His wrath is poured upon the sons of men. We have wandered away from the old landmarks. Let us return. If the Lord be God, serve Him; if Baal, serve him. Which side will you be on?