Presbyter in the context of "Arius"

A bishop is an ordained member of the clergy who is entrusted with a position of authority and oversight in a religious institution. In Christianity, bishops are normally responsible for the governance and administration of dioceses. The role or office of the bishop is called episcopacy or the episcopate. Organisationally, several Christian denominations utilise ecclesiastical structures that call for the position of bishops, while other denominations have dispensed with this office, seeing it as a symbol of power. Bishops have also exercised political authority within their dioceses.

Traditionally, bishops claim apostolic succession and the historic episcopacy, a direct historical lineage dating back to the original Twelve Apostles or Saint Paul. The bishops are by doctrine understood as those who possess the full priesthood given by Jesus Christ, and therefore may ordain other clergy, including other bishops. A person ordained as a deacon, priest (i.e. presbyter), and then bishop is understood to hold the fullness of the ministerial priesthood, given responsibility by Christ to govern, teach and sanctify the Body of Christ (the Christian Church). Priests, deacons and lay ministers co-operate and assist their bishops in pastoral ministry.

In Christian theology, ecclesiology is the study of the Church, the origins of Christianity, its relationship to Jesus, its role in salvation, its polity, its discipline, its eschatology, and its leadership.

In its early history, one of the Church's primary ecclesiological issues had to do with the status of Gentile members in what had become the New Testament fulfilment of the essentially Jewish Old Testament church. It later contended with such questions as whether it was to be governed by a council of presbyters or a single bishop, how much authority the bishop of Rome had over other major bishops, the role of the Church in the world, whether salvation was possible outside of the institution of the Church, the relationship between the Church and the State, and questions of theology and liturgy and other issues. Ecclesiology may be used in the specific sense of a particular church or denomination's character, self-described or otherwise. This is the sense of the word in such phrases as Catholic ecclesiology, Protestant ecclesiology, and ecumenical ecclesiology.

Prester John (Latin: Presbyter Ioannes) was a mythical Christian patriarch, presbyter, and king. Stories popular in Europe in the 12th to the 17th centuries told of a Nestorian patriarch and king who was said to rule over a Christian nation lost amid the pagans and Muslims in the Orient. The accounts were often embellished with various tropes of medieval popular fantasy, depicting Prester John as a descendant of the Three Magi, ruling a kingdom full of riches, marvels, and strange creatures.

At first, Prester John was imagined to reside in India. Tales of the Nestorian Christians' evangelistic success there and of Thomas the Apostle's subcontinental travels as documented in works like the Acts of Thomas probably provided the first seeds of the legend. As Europeans became aware of the Mongols and their empire, accounts placed the king in Central Asia, and eventually Portuguese explorers came to believe that the term was a reference to Ethiopia, which at that time was an isolated Christian "exclave" distant from any other Christian-ruled territory.

Clergy are formal leaders within established religions. Their roles and functions vary in different religious traditions, but usually involve presiding over specific rituals and teaching their religion's doctrines and practices. Some of the terms used for individual clergy are clergyman, clergywoman, clergyperson, churchman, cleric, ecclesiastic, and vicegerent while clerk in holy orders has a long history but is rarely used.

In Christianity, the specific names and roles of the clergy vary by denomination and there is a wide range of formal and informal clergy positions, including deacons, elders, priests, bishops, cardinals, preachers, pastors, presbyters, ministers, and the pope.

In Christianity, a minister is a person authorised by a church or other religious organization 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"). In some church traditions the term is usually used for people who have been ordained, but in other traditions it can also be used for non-ordained.

In the Catholic Church, the Eastern Orthodox Church, the Oriental Orthodox Church, Anglicanism and Lutheranism, the concept of a priesthood is emphasized, though in the Church of England there are nearly as many non-ordained licensed lay ministers as there are paid clergy. In other traditions such as Baptist, Methodist, and Reformed groups like Congregationalists and Presbyterians, 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 an elder (presbyter), pastor, preacher, bishop, or chaplain.

A pastor (abbreviated to "PsPr", "Pstr.", "Ptr." or "Psa" (both singular), or "Ps" (plural)) is the leader of a Christian congregation who also gives advice and counsel to people from the community or congregation. In Lutheranism, Catholicism, Eastern Orthodoxy, Oriental Orthodoxy and Anglicanism, pastors are always ordained. In Methodism, pastors may be either licensed or ordained.

The New Testament typically uses the words "bishops" (Acts 20:28) and "presbyter" (1 Peter 5:1) to indicate the ordained leadership in early Christianity. However, the word "pastor" (ποιμήν/poimēn) is only used one time to describe church leadership in the New Testament in Ephesians 4:11 which says, "that some would be apostles, some prophets, some evangelists, some pastors and teachers" (NRSV). Peter instructs church leadership using the verb, "to tend the flock' (lit. 'to shepherd,' ποιμαίνω/poimainō) of God that is in your charge, exercising the oversight (1 Peter 5:2 NRSV). The words "bishop" and "presbyter" were sometimes used in an interchangeable way, such as in Titus 1:5-6. However, there is ongoing dispute between branches of Christianity over whether there are two ordained classes (presbyters and deacons), or three (bishops, priests, and deacons). The first view is affirmed by some Presbyterians. On the other hand, Christians of the Roman Catholic, Persian, Eastern Orthodox, Oriental Orthodox, Moravian, Scandinavian Lutheran, Anglican, Old Catholic and other Presbyterian traditions maintain the latter view, with all but the Presbyterians affirming the doctrine of apostolic succession.

In certain Christian denominations, holy orders are the ordained ministries of bishop, priest (presbyter), and deacon, and the sacrament or rite by which candidates are ordained to those orders. Churches recognizing these orders include the Catholic Church, the Eastern Orthodox (ιερωσύνη [hierōsynē], ιεράτευμα [hierateuma], Священство [Svyashchenstvo]), Oriental Orthodox, Anglican, Assyrian, Old Catholic, Independent Catholic and some Lutheran churches. Except for some Lutherans and some Anglicans, these churches regard ordination as a sacrament (the sacramentum ordinis).

Denominations have varied conceptions of holy orders. In some Lutheran and Anglican churches the traditional orders of bishop, priest and deacon are bestowed using ordination rites contained within ordinals. The extent to which ordination is considered sacramental in these traditions has, however, been a matter of some internal dispute. Baptists are among the denominations that do not consider ministry as being sacramental in nature and would not think of it in terms of "holy orders" as such. Historically, the word "order" (Latin ordo) designated an established civil body or corporation with a hierarchy, and ordinatio meant legal incorporation into an ordo. The word "holy" refers to the church. In context, therefore, a holy order is set apart for ministry in the church. Other positions, such as pope, patriarch, cardinal, monsignor, archbishop, archimandrite, archpriest, protopresbyter, hieromonk, protodeacon and archdeacon, are not sacramental orders but specialized ministries.

Jerome (/dʒəˈroʊm/; Latin: Eusebius Sophronius Hieronymus; Ancient Greek: Εὐσέβιος Σωφρόνιος Ἱερώνυμος; c. 342–347 – 30 September 420), also known as Jerome of Stridon, was an early Christian priest, confessor, theologian, translator, and historian; he is commonly known as Saint Jerome.

He is best known for his translation of the Bible into Latin (the translation that became known as the Vulgate) and his commentaries on the whole Bible. Jerome attempted to create a translation of the Old Testament based on a Hebrew version, rather than the Septuagint, as prior Latin Bible translations had done. His list of writings is extensive. In addition to his biblical works, he wrote polemical and historical essays, always from a theologian's perspective.