Prophecy does not always
predestinate. Another prophet, Jonah, predicted under inspiration of the Lord
that in forty days the city of Nineveh would be destroyed, and yet it wasn’t (Jonah
3). Does this mean Jonah was a false prophet? No. The people of Nineveh
repented. Predictions made through prophets are often condition. People and
circumstances and other factors may contribute to and detract from the fulfillment
of prophecy. Read D&C 124:49, 51. (Michael J. Preece, Learning to Love
the Doctrine and Covenants [Salt Lake City: MJP Publishing, Inc., 1988], 188,
italics in original)