In Christianity, a minister is a person authorized by a church or other religious organizations to perform functions such as teaching of beliefs; leading services such as weddings, baptisms or funerals; or otherwise providing spiritual guidance to the community. The term is taken from Latin minister ("servant", "attendant"), which itself was derived from minus ("less"). In the Catholic Church, Anglican, Oriental Orthodox, Nordic Lutheran, and Eastern Orthodox churches, the concept of a priesthood is emphasized. In other Christian denominations, such as the Baptist, Congregationalist, Methodist, Presbyterian and Reformed churches, the term "minister" usually refers to a member of the ordained clergy who leads a congregation or participates in a role in a parachurch ministry; such a person may serve as a presbyter, pastor, preacher, bishop, chaplain or elder. With respect to ecclesiastical address, many ministers are styled as "The Reverend"; however, some use "Pastor" or "Father" as a title.