The Book of Immanuel David Isaiah

The Book of Immanuel David Isaiah is a twenty-seven-page manifesto in which Brian David Mitchell casts himself as a divinely appointed prophet and announces a new fundamentalist church. Written two months before he abducted Elizabeth Smart and discovered by FBI agents shortly after her rescue and Mitchell’s arrest, the booklet gives a religious framework to his claim to authority: its central argument is that divine priesthood power has passed through an unbroken succession of prophets and now rests with him.

Discovery and Purpose

The booklet came to light after the rescue of Elizabeth Smart, when FBI agents found it among the materials associated with Mitchell. Its timing is notable: he had written it two months before abducting her. The text was not merely a private devotional statement; it purported to be a divine manifesto announcing the inauguration of a new fundamentalist church, the Seven Diamonds Plus One. It described that church as a purified and exalted form of the Church of Jesus Christ of Latter-day Saints.

The document’s proclamation makes it an instrument of religious self-authorization. Mitchell appears in it under the name Immanuel, and the text presents his leadership as ordained by God rather than conferred by an established church. Its declared new church and its claim to divine authority are therefore inseparable: the booklet names an institution and, at the same time, identifies the prophet who is to lead it.

The Claimed Line of Authority

The booklet identifies Immanuel, or Mitchell, as the “one . . . mighty and strong,” a figure appointed by God to lead the new church. It also asserts that God transferred the keys, powers, and ordinances of the Holy Priesthood for the salvation of humankind through a succession of prophets. The lineage it sets out runs from Adam to Noah, Abraham, Moses, and Jesus, then to Joseph Smith, and from Joseph Smith to Immanuel David Isaiah, continuing “unto the end of the earth.”

By placing Mitchell at the end of this sacred genealogy, the text turns a claim about past religious history into a warrant for present leadership. It does not present him simply as a follower or interpreter of earlier prophets: it makes him their designated successor and the leader of a renewed church. The succession language lends the new organization a history reaching back to biblical origins while assigning its authority to Mitchell.

Revelation and Religious Authority

The booklet’s form of legitimacy belongs to a broader tension in Mormon history between personal revelation and institutional control. Joseph Smith initially encouraged followers to seek direct impressions from God, but the Church soon restricted who could receive commandments and revelations concerning its doctrine. That restriction addressed a practical problem: competing revelations could challenge the prophet’s authority. Yet personal revelation remained compelling to believers, and the continued assertion of divine guidance contributed to the emergence of many separate Mormon groups.

Against that background, The Book of Immanuel David Isaiah can be read as a compact claim to authority outside the established church. Its assertion that God has transferred priesthood power to Mitchell resembles the succession claims made by other religious leaders, while its declaration of a new church makes the challenge explicit. The booklet records what Mitchell’s movement claimed; it does not establish that the church or the asserted divine commission was recognized by the Church of Jesus Christ of Latter-day Saints.

Significance

The document brings together two acts of religious naming: it gives Mitchell the prophetic identity Immanuel and gives his proposed organization the name Seven Diamonds Plus One. Its account of succession makes those names part of a larger claim that divine authority has passed from ancient prophets, through Joseph Smith, to Mitchell. The booklet thus serves as both manifesto and charter for an alternative religious order, while its discovery after Smart’s rescue places that self-proclaimed prophetic authority in the context of the events that brought Mitchell to public attention.