People see the spires and wonder what goes on behind the doors. Here’s a plain, respectful answer, with the scriptures behind it.
Latter-day Saint temples are houses of the Lord where members make sacred covenants with God. Inside, they are baptized on behalf of ancestors who died without the chance (1 Corinthians 15:29), receive the endowment, a series of instructions and covenants centered on Jesus Christ, and are sealed as husband, wife and children for eternity (Matthew 16:19). Everyone dresses in white. Weekly worship happens in regular chapels, open to all. God has always asked for a temple: “let them make me a sanctuary; that I may dwell among them” (Exodus 25:8).
The short answerCovenants with God, for the living and the dead
A temple isn’t a Sunday meetinghouse. Latter-day Saints worship in ordinary chapels each week, open to anyone. Temples are set apart for sacred ordinances. The Church explains: “Temples are literally houses of the Lord. They are holy places of worship where individuals make sacred covenants with God” (Gospel Topics: Temples).
Inside, members are baptized on behalf of ancestors who died without the chance, receive the endowment (instruction and covenants centered on Jesus Christ), and are sealed as husband, wife and children for eternity. Everyone dresses in white. The Church says “the endowment focuses on the Savior, His role in Heavenly Father’s plan, and the personal commitment of each member to follow Him.”
Temples in the BibleGod has always asked for a house
From the start, God asked His people to build Him a holy place: “And let them make me a sanctuary; that I may dwell among them” (Exodus 25:8). Isaiah foresaw a temple in the last days: “the mountain of the Lord’s house shall be established in the top of the mountains … and many people shall go and say, Come ye, and let us go up to the mountain of the Lord, to the house of the God of Jacob; and he will teach us of his ways” (Isaiah 2:2–3).
Jesus loved the temple. At 12 He was found there and said, “wist ye not that I must be about my Father’s business?” (Luke 2:46–49). After His Resurrection, Peter and John still “went up together into the temple at the hour of prayer” (Acts 3:1). And in heaven the redeemed “serve him day and night in his temple” (Revelation 7:15).
Temples in the Book of MormonNephi built one; Christ appeared at one
Soon after reaching the promised land, Nephi wrote, “I, Nephi, did build a temple; and I did construct it after the manner of the temple of Solomon” (2 Nephi 5:16). Six centuries later, the risen Christ appeared to “a great multitude gathered together … round about the temple which was in the land Bountiful” (3 Nephi 11:1). Temples have always been where God meets His people.
What happens insideFour kinds of ordinances
Baptisms for the dead. Paul asked, “Else what shall they do which are baptized for the dead?” (1 Corinthians 15:29). Members, often youth, are baptized and confirmed on behalf of people who died without the chance. Those in the spirit world are free to accept or reject it. See Baptism for the Dead: 1 Corinthians 15:29.
The initiatory and endowment. The Church says “the word endowment means ‘gift,’” and that it “consists of a series of instructions and includes covenants to live righteously and follow the requirements of the gospel” (Gospel Topics: Temples). It teaches the plan of salvation, from the Creation to returning to God’s presence through Christ. Endowed members then wear the temple garment as a reminder of those covenants (LDS Temple Garments).
Sealings. Jesus gave Peter the power that “whatsoever thou shalt bind on earth shall be bound in heaven” (Matthew 16:19). In the temple, a husband and wife are sealed for time and all eternity, and children are sealed to parents. The Church teaches that “a sealing performed in the temple continues forever if the husband and wife are faithful to the covenants they make.”
Some details of the endowment are kept sacred and aren’t discussed outside the temple. That isn’t secrecy for its own sake. After the Transfiguration, Jesus Himself charged Peter, James and John, “Tell the vision to no man, until the Son of man be risen again from the dead” (Matthew 17:9). Sacred things are treated with reverence.
Why we build themElijah, families, and exaltation
Malachi ended the Old Testament with a promise: “Behold, I will send you Elijah the prophet … And he shall turn the heart of the fathers to the children, and the heart of the children to their fathers” (Malachi 4:5–6). The angel Moroni quoted it to Joseph Smith in 1823: “he shall plant in the hearts of the children the promises made to the fathers” (Joseph Smith—History 1:38–39). In 1836, in the newly dedicated Kirtland Temple, Christ appeared and said, “I have accepted this house, and my name shall be here,” and Elijah came: “the time has fully come, which was spoken of by the mouth of Malachi” (D&C 110:7; 110:14–15).
Temple covenants lead to exaltation. Of couples sealed by that authority who keep their covenants, the Lord says they “shall inherit thrones, kingdoms, principalities, and powers … which glory shall be a fulness and a continuation of the seeds forever and ever. Then shall they be gods, because they have no end” (D&C 132:19–20). In the temple we covenant to become like our Heavenly Father, who has created worlds without number, and to share in His eternal work as His children forever. See The Three Degrees of Glory.
Check the premiseThe presuppositions baked into the question
Before this question can be answered fairly, the person asking has to justify a few assumptions packed inside it:
- That temples are where Latter-day Saints go to church. Weekly worship happens in meetinghouses open to all. Temples are for sacred ordinances.
- That what happens inside is sinister or secret. The Church publicly describes the ordinances: baptisms, the endowment and sealings. Only sacred details are kept private (Gospel Topics: Temples).
- That temples are a 19th-century invention. God commanded temples in the Bible (Exodus 25:8), and Nephi built one around 570 B.C. (2 Nephi 5:16).
- That marriage must end at death. Jesus gave power to bind on earth and in heaven (Matthew 16:19).
FAQQuick answers
What happens in a Latter-day Saint temple?
Members perform baptisms for the dead, receive the endowment (instruction and covenants centered on Christ), and are sealed in marriage and as families for eternity.
Why can’t everyone go inside a temple?
Temples are for members making and keeping sacred covenants, who hold a temple recommend after interviews about faith and conduct. Before a new temple is dedicated, anyone can tour it at an open house.
What is the temple endowment?
A “gift” from God: a series of instructions and covenants that focus on the Savior, His role in Heavenly Father’s plan, and each member’s commitment to follow Him.
What is a temple sealing?
An ordinance that unites husband, wife and children for eternity by the priesthood power Jesus described in Matthew 16:19.
Why do Latter-day Saints build temples?
To provide saving ordinances for the living and the dead, fulfilling Malachi 4:5–6, and to be a place where God dwells with His people (Exodus 25:8).
What is baptism for the dead?
A temple ordinance in which living members are baptized on behalf of people who died without the chance. Paul mentioned it: “Else what shall they do which are baptized for the dead, if the dead rise not at all?” (1 Corinthians 15:29).
Are temple ceremonies secret?
Latter-day Saints call them sacred rather than secret. The Church publishes what happens in temples in general terms, but members don’t share certain details outside, following Jesus: “Give not that which is holy unto the dogs” (Matthew 7:6).
What does “Holiness to the Lord” on temples mean?
The words come from the plate on the high priest’s headdress, engraved “HOLINESS TO THE LORD” (Exodus 28:36). Every Latter-day Saint temple bears them, marking it as the house of the Lord.
SummaryKey takeaways
- Temples are for sacred ordinances; weekly worship is in meetinghouses.
- Inside: baptisms for the dead, the endowment and eternal sealings.
- God commanded temples in the Bible, and Nephi and Christ honored them in the Book of Mormon.
- Temple covenants lead to exaltation: becoming like our Father as His children forever.
If a temple open house comes near you, go. For quick, sourced answers, open Galatians18, and follow me on X at @TraviXai.
Sources
- King James Bible (churchofjesuschrist.org): Exodus 25:8 · Isaiah 2:2–3 · Malachi 4:5–6 · Matthew 16:19 · Matthew 17:9 · Luke 2:46–49 · Acts 3:1 · 1 Corinthians 15:29 · Revelation 7:15
- Book of Mormon: 2 Nephi 5:16 · 3 Nephi 11:1
- Doctrine and Covenants: D&C 110:7 · D&C 110:14–15 · D&C 132:19–20
- Pearl of Great Price: Joseph Smith—History 1:38–39
- “Temples,” Gospel Topics, churchofjesuschrist.org
- Featured image and in-article graphic: original graphics by thebookofmormon.ai (painterly backgrounds; no photographs or likenesses of real people).
