Joseph Smith Account 1843

Israel Daniel Rupp requested from Joseph Smith a chapter on the Mormons which was for a book he planned to publish containing the history and doctrine of religious organizations in the United States, this is the prophets response

I retired to a secret place in a grove and began to call upon the Lord, while fervently engaged in supplication my mind was taken away from the objects with which I was surrounded, and I was enwrapped in a heavenly vision and saw two glorious personages who exactly resembled each other in features, and likeness, surrounded with a brilliant light which eclipsed the sun at noon-day. They told me that all religious denominations were believing in incorrect doctrines, and that none of them was acknowledged of God as his church and kingdom. And I was expressly commanded to "go not after them," at the same time receiving a promise that the fulness of the gospel should at some future time be made known unto me.