D&C 20:26-28; “Not only those who believed after he came in the meridian of time, in the flesh, but all those from the beginning, even as many as were before he came, who believed in the words of the holy prophets, who spake as they were inspired by the gift of the Holy Ghost, who truly testified of him in all things, should have eternal life, 27 As well as those who should come after, who should believe in the gifts and callings of God by the Holy Ghost, which beareth record of the Father and of the Son; 28 Which Father, Son, and Holy Ghost are one God, infinite and eternal, without end. Amen.”
Isaiah 48:16; “Come ye near unto me, hear ye this; I have not spoken in secret from the beginning; From the time that it was, there am I: And now the Lord God, and his Spirit, hath sent me.”
Smith’s prophecy is dated sometime between the summer of 1829 – April 1830.
If he began prophesying about a god who didn’t fit the description above years later, doesn’t that make him a false prophet by his own standards?
Furthermore, wouldn’t this also mean every Mormon since that time would qualify as false prophets, apostles, missionaries, et al, since they’re not preaching a Triune God?