Christian denomination

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.

In Christian theology, a sodality, also known as a syndiakonia, is a form of the Universal Church organized in a specialized, task-oriented society, as opposed to a local, diocesan body (a modality). In English, the term sodality is most commonly used by groups in the Anglican Communion, Catholic Church, Eastern Orthodox Church, Lutheran Church and Reformed Church, where they are also referred to as confraternities. Sodalities are expressed among Protestant Churches through the multitude of mission organizations, societies, and specialized ministries that have proliferated, particularly since the advent of the modern missions movement, usually attributed to Englishman William Carey in 1792.

In many Christian denominations, "modality" refers to the structure and organization of the local or universal church, composed of pastors or priests. By contrast, parachurch organizations are termed sodalities. These include missionary organizations and Christian charities or fraternities not linked to specific churches. Some theologians would include denominations, schools of theology, and other multi-congregational efforts in the sodality category. Sodalities can also include religious orders, monasteries, and convents.

Quakers are people who belong to the Religious Society of Friends, originally known as simply the Society of Friends, a historically Protestant Christian set of denominations. Members refer to each other as Friends after John 15:14 in the Bible. Originally, others referred to them as Quakers because the founder of the movement, George Fox, told a judge to "quake before the authority of God".

The Friends are generally united by a belief in each human's ability to be guided by the inward light to "make the witness of God" known to everyone. Quakers have traditionally professed a priesthood of all believers inspired by the First Epistle of Peter. They include those with evangelical, holiness, liberal, and traditional Quaker understandings of Christianity, as well as Nontheist Quakers. To differing extents, the Friends avoid creeds and hierarchical structures. In 2017, there were an estimated 377,557 adult Quakers, 49% of them in Africa followed by 22% in North America.

A crucifix (from the Latin cruci fixus meaning '(one) fixed to a cross') is a cross with an image of Jesus on it, as distinct from a bare cross. The representation of Jesus himself on the cross is referred to in English as the corpus (Latin for 'body'). The crucifix emphasizes Jesus' sacrifice, including his death by crucifixion, which Christians believe brought about the redemption of mankind. Most crucifixes portray Jesus on a Latin cross, rather than a Tau cross or a Coptic cross.

The crucifix is a principal symbol for many groups of Christians, and one of the most common forms of the Crucifixion in the arts. It is especially important in the Catholic Church, and is also used in the Lutheran Churches, Anglican Churches, Eastern Orthodox Church, and in most Oriental Orthodox Churches (except the Armenian Church and Syriac Church). The symbol is less common in churches of other Protestant denominations, and in the Assyrian Church of the East and Armenian Apostolic Church, which prefer to use a cross without the figure of Jesus (the corpus).

A Christian state is a country that recognizes a form of Christianity as its official religion and often has a state church (also called an established church), which is a Christian denomination that supports the government and is supported by the government.

Historically, the nations of Armenia, Aksum, Makuria, and the Holy Roman Empire have declared themselves as Christian states, as well as the Roman Empire and its continuation the Byzantine Empire, the Russian Empire, the Spanish Empire, the British Empire, the Portuguese Empire, and the Frankish Empire, the Belgian colonial empire, the French empire.

Eastern Orthodoxy in Montenegro refers to adherents, religious communities, institutions and organizations of Eastern Orthodox Christianity in Montenegro. It is the largest Christian denomination in the country. According to the latest 2023 Census of Montenegro, 443,394 citizens of Montenegro (71.10%) registered as Eastern Orthodox Christians. The majority of Eastern Orthodox people in Montenegro are adherents of the Serbian Orthodox Church. A minor percentage supports the canonically unrecognized Montenegrin Orthodox Church, which has the status of a religious non-governmental organization since its founding in 1993.

The current Metropolitan of Montenegro and primate of the Serbian Orthodox Church in Montenegro is Joanikije II, who serves as 56th head since the establishment of the diocese in 1219. The seat of the diocese is the Cetinje Monastery, since 1484.

The dominant religion in Slovenia is Christianity, primarily the Catholic Church, which is the largest Christian denomination in the country. Other Christian groups having significant followings in the country include Eastern Orthodoxy and Protestantism (Lutheranism). Islam, Judaism and Hinduism are small minorities in Slovenia. About 18% of the population are either agnostic or atheist.

The Orthodox Church in America (OCA) is an Eastern Orthodox Christian church based in North America. The OCA consists of more than 700 parishes, missions, communities, monasteries and institutions in the United States, Canada and Mexico. In 2011, it had an estimated 84,900 members in the United States. In 2015, the OCA claimed 900,000 baptized members.

The OCA has its origins in a mission established by eight Russian Orthodox monks in Alaska, then part of Russian America, in 1794. This grew into a full diocese of the Russian Orthodox Church named the Diocese of Alaska and Aleutines with the Cathedral in Sitka. After the United States purchased Alaska from Russia in 1867, the diocese was granted jurisdiction for all North America and the see moved to San Francisco between 1872 and 1903, and later in New York City after 1903. By the late 19th century, the Russian Orthodox Church had grown in other areas of the United States due to the arrival of immigrants from areas of Eastern and Central Europe, many of them formerly of the Eastern Catholic Churches ("Greek Catholics"), and from the Middle East. These immigrants, regardless of nationality or ethnic background, were united under a single North American diocese of the Russian Orthodox Church.

The Reformed Church in Romania (Hungarian: Romániai Református Egyház; Romanian: Biserica Reformată din România) is a Calvinist denomination and the largest Protestant church in Romania.The majority of its followers are of Hungarian ethnicity and Hungarian is the main church language. The large majority of the Church's parishes are in Transylvania; according to the 2021 census, 495,380 people or 2.6% of the total population belong to the Reformed Church. About 95% of the members were of Hungarian ethnicity.

The religious institution is composed of two bishoprics, the Reformed Diocese of Királyhágómellék and the Reformed Diocese of Transylvania. The headquarters are at Oradea and Cluj-Napoca, respectively.

The bride of Christ, or the lamb's wife, is a metaphor used in number of related verses in the Christian Bible, specifically the New Testament – in the Gospels, the Book of Revelation, the Epistles, with related verses in the Old Testament.

The identity of the bride is generally considered within Christian theology to be the church, with Jesus as the bridegroom; Ephesians 5:22–33 in particular compares the union of husband and wife to that of Christ and the church. It is a favorite ecclesial image. Interpretations of the metaphor's usage vary from church to church, with most believing that it always refers to the church.