The Spirit of Elijah occupies a central place in the work of salvation within The Church of Jesus Christ of Latter-day Saints, serving as a divine impetus for genealogical research, temple ordinances for the dead, and the eternal linking of families. The concept derives its name from the Old Testament prophet Elijah, whose mission and prophetic authority were associated with the sealing power. This divine commission was reaffirmed through Elijah’s visitation to the Prophet Joseph Smith in the Kirtland Temple on April 3, 1836, as recorded in Doctrine & Covenants 110:13–16. Elijah declared that he had come to confer the keys of the dispensation of the gospel “to turn the hearts of the fathers to the children, and the children to the fathers” (Doctrine & Covenants 110:15), thus fulfilling the prophecy found in Malachi 4:5–6.

The Spirit of Elijah is often understood as a divinely inspired inclination toward family history work and a recognition of the eternal nature of familial relationships. Latter-day Saint doctrine teaches that temple ordinances, including baptisms for the dead and sealings, are essential to the salvation of the deceased who died without the opportunity to receive the gospel in mortality. This work is facilitated by the Spirit of Elijah, which prompts individuals to seek out their ancestors and perform necessary ordinances vicariously on their behalf. This concept finds resonance in the words of Joseph Smith, who taught, “The greatest responsibility in this world that God has laid upon us is to seek after our dead.”²²² He further explained that “without [our ancestors] we cannot be made perfect—neither can they without us be made perfect” (Doctrine & Covenants 128:15), reinforcing the reciprocal necessity of salvation across generations.

Scriptural precedents for this doctrine extend beyond the Old Testament and the Restoration scriptures. The New Testament contains references to baptism for the dead (1 Corinthians 15:29), suggesting that early Christians may have practiced a form of vicarious ordinance work. Latter-day Saint scholars have pointed to this passage as evidence that the Spirit of Elijah and its accompanying ordinances are restorations of ancient practices rather than novel inventions. Additionally, the importance of genealogy and ancestry is deeply embedded in biblical traditions, with genealogical records meticulously maintained in both the Old and New Testaments. These scriptural foundations reinforce the Latter-day Saint understanding that the work of redeeming the dead is a divine mandate rather than a mere historical curiosity.

While many religious traditions acknowledge the importance of ancestry and family lineage, The Church of Jesus Christ of Latter-day Saints uniquely combines genealogical research with salvific temple ordinances, distinguishing its understanding of the Spirit of Elijah from other Christian and non-Christian beliefs. Many faiths encourage the honoring of ancestors, yet the Latter-day Saint view extends beyond mere remembrance to active participation in their eternal progression. Unlike traditional Christian denominations, which may emphasize personal salvation without an explicit mechanism for vicarious work, the Church teaches that linking generations through sacred ordinances is essential to fulfilling God's eternal plan.

The global reach of the Spirit of Elijah is evident in the Church’s extensive genealogical efforts, including the establishment of FamilySearch, one of the world’s largest repositories of genealogical records. This work is seen as a fulfillment of prophecy and a means through which millions of people, both within and outside of the Church, can connect with their heritage.

Adopting the Latter-day Saint understanding of the Spirit of Elijah provides unique spiritual and doctrinal benefits. It deepens individuals’ sense of connection to their ancestors, reinforces the principle of eternal families, and offers a profound understanding of God’s work of salvation. Moreover, it fosters a sense of identity and purpose, as members of the Church recognize their role in participating in the grand, ongoing process of redemption. The Spirit of Elijah thus stands as both a doctrinal pillar and a personal invitation, extending across generations and uniting the human family in the eternal work of salvation.