On Quora, D. Charles Pyle, author of the well-researched and argued book I Have Said Ye are Gods, has an excellent response to the claim D&C 84 contains a false prophecy:
Is Joseph Smith's prophecy "Zion will be built with its temple at independence within a generation" a failed prophecy?
For more on Joseph Smith's prophecies, see:
Resources on Joseph Smtih's Prophecies (I have added Pyle's response to this list)
Is Joseph Smith's prophecy "Zion will be built with its temple at independence within a generation" a failed prophecy?
For more on Joseph Smith's prophecies, see:
Resources on Joseph Smtih's Prophecies (I have added Pyle's response to this list)