One Mighty and Strong

One Mighty and Strong is a person of unknown identity who was the subject of an 1832 prophecy by Joseph Smith, the founder of the Latter Day Saint movement. The prophecy echoes the words and prophecy of Isaiah . The One Mighty and Strong was said by Smith to be one who would "set in order the house of God" and arrange for the "inheritances of the [Latter Day] Saints". Since this prophecy was uttered, many Latter Day Saints have claimed to be or to have otherwise identified the One Mighty and Strong, and many schismatic Latter Day Saint sects have arisen as a result of these claims.

In a letter written to William W. Phelps on November 27, 1832, Joseph Smith transcribed a revelation that he said he received from Jesus Christ:

[I]t shall come to pass, that I, the Lord God, will send one mighty and strong, holding the sceptre of power in his hand, clothed with light for a covering, whose mouth shall utter words, eternal words; while his bowels shall be a fountain of truth, to set in order the house of God, and to arrange by lot the inheritances of the Saints, whose names are found, and the names of their fathers, and of their children enrolled in the book of the law of God: while that man, who was called of God and appointed, that putteth forth his hand to steady the ark of God, shall fall by the vivid shaft of lightning .... These things I say not of myself; therefore, as the Lord speaketh, He will also fulfill.

Smith never revealed the identity of the "one mighty and strong" referred to in this prophecy.

In a letter to Brigham Young, dated May 6, 1867, Phelps mentioned that he believed that Smith's prophecy refers to Adam and his future arrival at Adam-ondi-Ahman.

The first Latter Day Saint denomination to canonize Smith's prophecy was The Church of Jesus Christ of Latter-day Saints (LDS Church). In 1876, the excerpt from the Smith–Phelps letter was included as section 85 in the church's edition of the Doctrine and Covenants, one of the church's books of scripture. The section continues to be found in the modern LDS Church's scripture. Since its canonization, members of the LDS Church and those who have created schisms from the LDS Church have been the primary groups of Latter Day Saints who have made claims of identifying the "one mighty and strong". However, persons from Latter Day Saint denominations that have not canonized Smith's prophecy have also, on occasion, made similar identifications.

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