In this connection we introduced three “prophecies” from the Mormon “seer” for testing.
1. Smith prophesied that the civil war conflict between the northern and southern states would become so intense that “war shall be poured out upon all nations” (Doctrine & Covenants 87:1-3). It wasn’t!
2. On February 14, 1835, Smith “prophesied” concerning “the coming of the Lord” - that “fifty-six years should wind up the scene” (B.H. Roberts, History of the Church, II, p. 182). It didn't!
3. Smith gave a “revelation” that the Mormon temple would be erected in Independence, Missouri (Doctrine & Covenants 57:1-3). That “prophecy” failed also.
By the standard set forth in Deuteronomy 18:21-22, Joseph Smith, Jr. was a false prophet. Moses declared:
“And if you say in your heart, How shall we know the word that Jehovah has not spoken? When a prophet speaks in the name of Jehovah, if the thing follows not, nor comes to pass, that is the thing which Jehovah has not spoken: the prophet has spoken it presumptuously, you should not be afraid of him.”
http://www.christiancourier.com/questions/mormonismsProphet.htm
Too, while The Book of Mormon affirms that God approves of only “one wife,” and polygamy is characterized as whoredom, sin, etc. (Jacob 2:27; 3:5; 1:15; 2:23-24; Mosiah 11:2), Joseph Smith received the “revelation” of plural marriage as “a new and everlasting covenant” which could not be rejected without the penalty of damnation (Doctrine & Covenants 132:3-4).
These are but a sampling of the degenerate teachings of Mormonism’s “prophet.”
http://www.christiancourier.com/archives/mormonRestoration.htm
I also encourage reading this article:
http://www.christiancourier.com/penpoints/faceLift.htm