Bishop is the highest priesthood office of the Aaronic priesthood in the Latter Day Saint movement. It is almost always held by one who already holds the Melchizedek priesthood office of high priest. 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 Partridge and his family emigrated to the church's growing colony in Jackson County, Missouri, where he continued to act as bishop of the branch of the church. Newel K. Whitney was then called as a bishop to oversee the temporal affairs of the church in Kirtland, Ohio.
When the Latter Day Saints were headquartered in Nauvoo, Illinois, the membership was separated into three "wards" or geographical precincts ("Upper," "Middle" and "Lower"), and a bishop was called to oversee the temporal affairs of each ward. Partridge presided over the "Upper Ward," Whitney presided over the "Middle Ward" and Vinson Knight presided over the "Lower Ward." Over time in the church's history, the position of Presiding Bishop was created. Partridge is considered the church's "First Presiding Bishop", although neither he nor his contemporaries saw him as a superior to other bishops of the church in that time period.