With regard to Ellen White, the question was raised while she was still alive, "Do Seventh-day Adventists regard Sister White as infallible?

The question was answered in the pages of the Review and Herald in 1883 by W. H. Littlejohn in a succinct, forthright statement: No. Neither do they believe that Peter or Paul was infallible. They believe that the Holy Spirit which inspired Peter and Paul was infallible. They believe also that Mrs. White has from time to time received revelations from the Spirit of God, and that revelations made to her by the Spirit of God are just as reliable as revelations made by the same Spirit to other persons.[169] The Seventh-day Adventist denomination today still holds that Ellen White was reliable, trustworthy, and authoritative as a prophet of the Lord. The Adventist church maintains that she was inspired in the same manner, and to the same degree, as the prophets of the Bible; and yet, paradoxically, the church holds also that we do not make her writings another Bible, nor do we even consider them an addition to the sacred canon of Scripture. The explication of this position more fully in ...  more