When the people of the last days humble themselves before God, then, according to Moroni, the Lord will unfold before the eyes of the people the revelations written by John (Ether 4:16). Donl Peterson notes a statement by Oliver Cowdery to the effect that the sealed portion of the plates given to Joseph Smith "contains the same revelation which was given to John upon the isle of Patmos, and when the people of the Lord are prepared, and found worthy, then it will be unfolded unto them" (Messenger and Advocate, February 1835, p. 80) [H. Donl Peterson, Moroni: Ancient Prophet Modern Messenger, p. 43]
Note* Then Nephi's vision and Lehi's vision either approximated, or were the same as that of John. In 1 Nephi 14 the angel says to Nephi,
"But the things which thou shalt see hereafter thou shalt not write; for the Lord God hath ordained the apostle of the Lamb of God that he should write them. And also others who have been, to them hath he shown all things and they have written them; and they are sealed up to come forth in their purity, according to the truth which is in the Lamb, in the own due time of the Lord, unto the house of Israel. And I, Nephi, heard, and bear record, that the name of the apostle of the Lamb was John, according to the word of the angel. And behold, I, Nephi, am forbidden that I should write the remainder of the things which I saw and heard; wherefore the things which I have written sufficeth me; and I have written but a small part of the things which I saw. And I bear record that I saw the things which my father saw, and the angel of the Lord did make them known unto me. (1 Nephi 14:25-29; emphasis added)
[Alan C. Miner, Personal Notes] [See the commentary on Ether 4:4]