Kenneth W. Godfrey writes on the 1886 John Taylor revelation in Dialogue.
Kenneth Godfrey, “The Coming of the Manifesto,“ Dialogue: A Journal of Mormon Thought 5, no. 3 (1970): 15
The alleged revelation given to John Taylor on September 27, 1886, provides further evidence that there was a growing concern regarding Church teachings which made it necessary for the Saints to disregard the laws of the land. Outside pressure was causing President Taylor considerable anxiety as he contemplated the fate of his people. So great was his concern that he made the subject again a matter of prayer. In response to his petition the Lord told him, "All commandments that I give must be obeyed . . . unless they are revoked by me or by my authority." The Lord then reiterated for the benefit of President Taylor that He had revealed the New and Everlasting Covenant and had spoken in great plainness to the Saints regarding this covenant. In the last part of this revelation the Lord, through President Taylor, said, "I have not revoked this law, nor will I, for it is everlasting, and those who will enter into my glory must obey the conditions thereof . . ."10
10 Dean C. Jessee, "A Comparative Study and Evaluation of the Latter-day Saint and the Fundamentalist Views Pertaining to the Practice of Plural Marriage," Master's Thesis, Brigham Young University, 1959, p. 101. The family of John Taylor claims that the revelation referred to above was found in the prophet-leader's papers and the original given to the Church historian. Since that time it has not been available to the public and the Church Historian allegedly has declared that it is not in the Church Historian's Library. However Dean Jessee concluded in his study that it is highly probable that such a revelation does exist. The alleged revelation published in full in the Jessee thesis was taken from a publication of the so-called Fundamentalists called Truth (July 1949), 41-43.