A bishop holds one of the key ecclesiastical positions within the Mormon Church. He is the leader of a local congregation, known as a ward. The position of a bishop within the Mormon Church differs from the position with the same name in other denominations. In other churches, a bishop may administer a large geographical area involving a large number of congregations. The Mormon position of bishop is most analogous to the position of a rabbi, minister, pastor, or parish priest in other denominations. The position of bishop is singular; there is only one bishop per congregation at any given time.