“ ‘Some revelations are of God: some revelations are of man: and some revelations are of the devil.’ ” —Prophet Joseph Smith, Address to All Believers in Christ, 1887, by David Whitmer
If Joseph Smith couldn’t tell where his “revelations” were coming from, how do we know which ones to believe?
“Joseph …received a revelation that some of the brethren should go to Toronto, Canada, and that they would sell the copy-right of the Book of Mormon… they failed entirely to sell the copy-right, returning without any money… we asked Joseph how it was that he had received a revelation… and the brethren had utterly failed in their undertaking. Joseph did not know how it was, so he enquired of the Lord about it, and behold the following revelation came through the stone: ‘Some revelations are of God: some revelations are of man: and some revelations are of the devil.’ So we see that the revelation to go to Toronto and sell the copy-right was not of God, but was of the devil or of the heart of man.” —An Address to All Believers in Christ, 1887, p. 31
“…in the latter times some shall depart from the faith, giving heed to seducing spirits, and doctrines of devils;”—1 Timothy 4:1