Much of the Latter Day Saint theology of baptism was established during the early Latter Day Saint movement founded by Joseph Smith. Baptism must be by immersion and is for the remission of sins, and occurs after one has shown faith and repentance. Latter Day Saint baptism does not purport to remit any sins other than personal ones, as adherents do not believe inoriginal sin. Baptisms also occur only after an "age of accountability" which is defined as the age of eight years. The theology thus rejects infant baptism. According to the account in Joseph Smith–History 1:68, the first Latter Day Saint baptisms occurred on May 15, 1829, when Joseph Smith and Oliver Cowdery baptized each other in the Susquehanna River near Harmony, Pennsylvania shortly after receiving the Aaronic priesthood from John the Baptist. In addition, Latter Day Saint theology requires baptism only be performed by a priesthood holder. The minimum required priesthood level to perform a baptism in Mormonism is Priest, who is a worthy male members at least 16 years old, and the rite is presided by a Bishop. Because the churches of the Latter Day Saint movement operate under a lay priesthood, children raised in a Mormon family are usually baptized by a father or close male friend or family member. Latter Day Saints view baptism as symbolic of Jesus' death, burial and resurrection, and also symbolic of the baptized individual separating from the "natural" or sinful aspects of humanity and becoming spiritually reborn as a disciple of Jesus. Membership into a Latter Day Saint church is granted only by baptism. Most Latter Day Saint churches do not recognize the baptisms of other faiths as they believe baptisms must be performed under the church's unique priesthood authority. Therefore, any converts are baptized at their conversion. Baptism are preceded by a baptismal interview.
Procedures
Section 20 first documented the instructions for Latter Day Saint baptism. People being baptized or performing the baptism typically wear a "one-piece suit" with "short sleeves, and is lined to the knee." Baptisms are usually performed in a baptismal font, but any body of water in which the person may be completely immersed is acceptable. The person administering the baptism must recite the prayer exactly, and immerse every part, limb, hair and clothing of the person being baptized. If there are any mistakes, or if any part of the person being baptized is not fully immersed, the baptism is repeated until it is performed correctly. In addition to the baptizer, two Church members witness the baptism to ensure that it is performed properly. Following baptism, Latter Day Saints receive the Gift of the Holy Ghost by the laying on of hands of a Melchizedek Priesthood holder.
practices baptism for the dead "vicariously" or "by proxy" in their temples for anyone who did not receive these ordinances while living.
Rebaptism
After the death of Joseph Smith, the founder of the Latter Day Saint movement, in 1844, rebaptism became a more important ordinance in the LDS Church, as led by Brigham Young. Young led his group to the Great Basin in what is now Utah, and most of his followers were rebaptised soon after arriving as a sign that they would rededicate their lives to Christ. During the "Mormon Reformation" of 1856–57, rebaptism became an extremely important ordinance, signifying that the church member confessed their sins and would live a life of a Latter-day Saint. Church members were rebaptized prior to new covenants and ordinances, such as ordination to a new office of the priesthood, receiving temple ordinances, getting married, or entering plural marriage. Rebaptism remains a practice in the LDS Church today, but is practiced when a previously excommunicated member rejoins the church. In such cases, the wording of the ordinance is identical to that of the first baptismal ordinance.
