One true churchThe expression "one true church" refers to an ecclesiological position asserting that Jesus gave his authority in the Great Commission solely to a particular visible Christian institutional church—what is commonly called a denomination. This view is maintained by the Catholic Church, the Eastern Orthodox Church, the Oriental Orthodox communion, the Assyrian Church of the East, the Ancient Church of the East, the Christian Churches/Churches of Christ, the Churches of Christ, and the Lutheran Churches, as well as certain Baptists.
Greek Orthodox ChurchThe term Greek Orthodox Church (Greek: Ἑλληνορθόδοξη Ἐκκλησία, Ellinorthódoxi Ekklisía, elinorˈθoðoksi ekliˈsia) has three meanings. The broader meaning designates "the entire body of Orthodox (Chalcedonian) Christianity, sometimes also called 'Eastern Orthodox,' 'Greek Catholic,' or generally 'the Greek Church. The narrower meaning designates "any of several independent churches within the worldwide communion of (Eastern) Orthodox Christianity that retain the use of the Greek language in formal ecclesiastical settings".
Priesthood of all believersThe priesthood of all believers or universal priesthood is a biblical principle in Protestant branches of Christianity which is distinct from the institution of the ministerial priesthood (holy orders) found in some other branches, including the Roman Catholic and Eastern Orthodox. Derived from the Bible and elaborated in the theology of Martin Luther and John Calvin, the principle became prominent as a tenet of Protestant Christian doctrine, though the exact meaning of the belief and its implications vary widely among denominations.
Anointing of the sickAnointing of the sick, known also by other names such as unction, is a form of religious anointing or "unction" (an older term with the same meaning) for the benefit of a sick person. It is practiced by many Christian churches and denominations. Anointing of the sick was a customary practice in many civilizations, including among the ancient Greeks and early Jewish communities. The use of oil for healing purposes is referred to in the writings of Hippocrates.
Culture of ancient RomeThe culture of ancient Rome existed throughout the almost 1,200-year history of the civilization of Ancient Rome. The term refers to the culture of the Roman Republic, later the Roman Empire, which at its peak covered an area from present-day Lowland Scotland and Morocco to the Euphrates. Life in ancient Rome revolved around the city of Rome, its famed seven hills, and its monumental architecture such as the Colosseum, Trajan's Forum, and the Pantheon. The city also had several theaters and gymnasia, along with many taverns, baths and brothels.
Church invisibleThe church invisible, invisible church, mystical church or church mystical, is a Christian theological concept of an "invisible" Christian Church of the elect who are known only to God, in contrast to the "visible church"—that is, the institutional body on earth which preaches the gospel and administers the sacraments. Every member of the invisible church is "saved", while the visible church contains all individuals who are saved though also having some who are "unsaved".
Church (congregation)A church (or local church) is a religious organization or congregation that meets in a particular location. Many are formally organized, with constitutions and by-laws, maintain offices, are served by clergy or lay leaders, and, in nations where this is permissible, often seek non-profit corporate status. Local churches often relate with, affiliate with, or consider themselves to be constitutive parts of denominations, which are also called churches in many traditions.
House churchA house church or home church is a label used to describe a group of Christians who regularly gather for worship in private homes. The group may be part of a larger Christian body, such as a parish, but some have been independent groups that see the house church as the primary form of Christian community. Sometimes these groups meet because the membership is small, and a home is the most appropriate place to assemble until such time as the group has sufficient funds to rent a regular place to meet (as in the beginning phase of the British New Church Movement).
Christian worshipIn Christianity, worship is the act of attributing reverent honour and homage to God. In the New Testament, various words are used to refer to the term worship. One is proskuneo ("to worship") which means to bow down to God or kings. Throughout most of Christianity's history, corporate Christian worship has been liturgical, characterized by prayers and hymns, with texts rooted in, or closely related to, the Bible (Scripture), particularly the Psalter, and centered on the altar (or table) and the Eucharist; this form of sacramental and ceremonial worship is still practiced by the Catholic, Eastern Orthodox, Lutheran and Anglican churches, and Methodism to a lesser extent.
Branch theoryBranch theory is an ecclesiological proposition that the One, Holy, Catholic, and Apostolic Church includes various different Christian denominations whether in formal communion or not. The theory is often incorporated in the Protestant notion of an invisible Christian Church structure binding them together. Anglican proponents of Anglo-Catholic churchmanship who support the theory include only the Roman Catholic, Eastern Orthodox, Oriental Orthodox, Scandinavian Lutheran, Old Catholic, Moravian, Persian and Anglican churches as branches.
