Bishop is the highest priesthood office of the Aaronic priesthood in the Latter Day Saint movement, and is leader of the Aaronic priesthood in a given ward or congregation. It is almost always held by one who already holds the Melchizedek Priesthood office of high priest and who serves as the leader of a local congregation of church members. The Latter Day Saint concept of the office differs significantly from the role of bishops in other Christian denominations, being in some respects more analogous to a pastor or parish priest. Each bishop serves with two counselors, which together form a bishopric.

The role of a bishop varies in the different Latter Day Saint denominations; however, they derive from a common history.

Edward Partridge became the first man called to the office of bishop in the early Latter Day Saint church on February 4, 1831. The duties of the office were to oversee the temporal affairs and accounts of the church through the implementation of the law of consecration. Partridge was called to preside over the Missouri Church in Joseph Smith's absence and soon thereafter Edward and his family emigrated to the church's growing colony in Jackson County, Missouri, and continued to act as Bishop of the Branch of the Church there. Newel K. Whitney was then called as Bishop to oversee the temporal affairs of the church in Kirtland, Ohio.

A bishop (English derivation of the New Testament Greek επίσκοπος episcopos "overseer, guardian") is an ordained or consecrated member of the Christian clergy who is generally entrusted with a position of authority and oversight. Within the Catholic Church, Eastern Orthodox, Oriental Orthodox, Anglican, Old Catholic, Independent Catholic Churches, and in the Assyrian Church of the East, bishops claim apostolic succession, a direct historical lineage dating back to the original Twelve Apostles. Within these churches, bishops are seen as those who posess the full priesthood and can ordain clergy including other bishops. Some Protestant churches including the Lutheran and Methodist churches have bishops serving similar functions as well, though not always understood to be within apostolic succession in the same way. It is the one ordained deacon, priest and then bishop who is understood to hold the fullness of the (ministerial) priesthood, given responsibility by Christ to govern, teach and sanctify the Body of Christ, members of the Faithful. Priests, deacons, and lay ministers cooperate and assist their bishop(s) in shepherding a flock.

This list of sects in the Latter Day Saint movement provides a listing of churches that form a part of the Latter Day Saint movement—sometimes collectively referred to as Restorationism or Mormonism—whether still extant or not. A member of any of these sects is properly referred to as a Latter Day Saint in the general sense, regardless of the particular church to which he or she may belong (or belonged). While this list is far from complete, it currently incorporates all of the major known sects within the movement, past or present.

The Latter Day Saint movement includes:

The term Mormonism is often used as a collective description of the movement and especially of The Church of Jesus Christ of Latter-day Saints; however, many other Latter Day Saint sects are opposed to the use of this term, as they consider it to be derogatory and connected to the polygamy once practiced by the Utah church. These other groups tend to prefer the terms Restorationist or Latter Day Saint.

A day is a unit of time, commonly defined as an interval equal to 24 hours. It also can mean that portion of the full day during which a location is illuminated by the light of the sun, also known as daytime. The period of time measured from local noon to the following local noon is called a solar day.

Several definitions of this universal human concept are used according to context, need and convenience. In 1967, the second was redefined in terms of the wavelength of light, and it became the SI base unit of time. The unit of measurement for time called "day", redefined in 1967 as 86,400 SI seconds and symbolized d, is not an SI unit, but it is accepted for use with SI. A civil day is usually also 86,400 seconds, plus or minus a possible leap second in Coordinated Universal Time UTC, and, in some locations, occasionally plus or minus an hour when changing from or to daylight saving time. The word day may also refer to a day of the week or to a calendar date, as in answer to the question "On which day?" Day also refers to the part of the day that is not night — also known as 'daytime'. The life patterns of humans and many other species are related to Earth's solar day and the cycle of day and night (see circadian rhythms).

A saint is a holy person. In various religions, saints are people who are believed to have exceptional holiness.

In Christian usage, "saint" refers to any believer who is "in Christ", and in whom Christ dwells, whether in heaven or in earth. (2Corinthians 5:17; Ephesians 3:14-19; 2Corinthians 13:5) In Orthodox and Catholic teachings, all Christians in heaven are considered to be saints, but some are considered to be worthy of higher honor, emulation, or veneration.

In the Christian Bible, only one person is expressly called a saint: "They envied Moses also in the camp, and Aaron the saint of the LORD." (Psalms 106:16-18) The apostle Paul declared himself to be "less than the least of all saints" in Ephesians 3:8.

The term in English is mostly used for Christians, and is "...used predominantly in the popular and theological sense indicated above, that is, as referring to all those who have died and are with God in Christ."

Many religions use similar concepts to venerate individuals worthy of honor in some way, e.g., see Hindu saints. John A. Coleman S.J., Graduate Theological Union, Berkeley, wrote that saints across various cultures and religions have the following family resemblances: