Stop the tape. A "prophet...in angelic form" is Mormonese for the ghost of a dead man...or an ex-angelic demonic being masquerading as a "ghost."
From the article: ...quoted a number of biblical passages, among them this verse from Isaiah: "And there shall come forth a rod out of the stem of Jesse, and a Branch shall grow out of his roots" (Isaiah 11:1). Some 15 years later, the Prophet would provide a divinely revealed explanation of this verse in the form of questions and responses recorded today as Doctrine and Covenants 113:1-4: ..."What is the rod spoken of in the first verse of the 11th chapter of Isaiah, that should come of the Stem of Jesse? "Behold, thus saith the Lord: It is a servant in the hands of Christ, who is partly a descendant of Jesse as well as of Ephraim, or of the house of Joseph, on whom there is laid much power." Commented Elder Bruce R. McConkie of the Quorum of the Twelve, "Are we amiss in saying that the prophet here mentioned is Joseph Smith, to whom the priesthood came, who received the keys of the kingdom, and who raised the ensign for the gathering of the Lord's people in our dispensation?"
(Thanks for askin' Brother Bruce. The answer to your question is, "Yes, Mormons are deeply --and widely -- amiss!)
The Catholics are really not going to like this...