On receiving notification that a large number of copies of Liahona were being printed and circulated containing what is known as the King Follett sermon, as it has since been corrected and interpolated, with notes added, we sent the following telegram: ... when the sermon was first published it did not receive the revision or sanction of the Prophet Joseph [Smith], who preached it, and it was reported from the impressions obtained by for different persons who heard it, neither of whom was a shorthand writer.
There are some points in the sermon which appear to be in direct conflict with revelations accepted by the Church as divine. Some portions of the original report have been expunged from the version which appears in Liahona; there are some interpolations also which have been made without authority. Then there are footnotes added introducing ideas not warranted by the text, which state plainly that the original report is evidently incorrect in some particulars. Such a doubtful production we think is not proper to publish as authentic. For these reasons we sent you the dispatch referred to.
[First Presidency, Letter to Samuel O. Bennion and Joseph A. McRae, as quoted in Minutes of the Apostles of The Church of Jesus Christ of Latter-day Saints, 1910-1951, Privately Published, Salt Lake City, Utah 2010]