Christian in the context of Plainchant

In Christianity, Jesus is the Son of God as chronicled in the Bible's New Testament, as well as prophesied in the Old Testament, and is held to be God the Son, a prosopon (Person) of the Trinity of God. Christians believe him to be the Jewish messiah (giving him the title Christ), who was prophesied in the Bible's Old Testament. Through Jesus's crucifixion and resurrection, Christians believe that God offers humans salvation and eternal life, with Jesus's death atoning for all sin.

These teachings emphasize that as the Lamb of God, Jesus chose to suffer nailed to the cross at Calvary as a sign of his obedience to the will of God, as an "agent and servant of God". Jesus's choice positions him as a man of obedience, in contrast to Adam's disobedience. According to the New Testament, after God raised him from the dead, Jesus ascended to heaven to sit at the right hand of God the Father, with his followers awaiting his return to Earth and God's subsequent Last Judgement.

In Christian belief, a saint, also known as a hallow, is a person who is recognized as having an exceptional degree of holiness, likeness, or closeness to God. However, the use of the term saint depends on the context and denomination. Official ecclesiastical recognition, and veneration, is conferred on some denominational saints through the process of canonization in the Catholic Church or glorification in the Eastern Orthodox Church after their approval. The saints are honored in the liturgical calendars of Evangelical Lutheranism and Anglicanism. In other nonconformist denominations, such as the Plymouth Brethren, and following from Pauline usage, saint refers broadly to any holy Christian without special recognition or selection.

While the English word saint (deriving from the Latin sanctus) originated in Christianity, historians of religion tend to use the appellation "in a more general way to refer to the state of special holiness that many religions attribute to certain people", referring to the Hindu rishi, Sikh bhagat or guru, the Shintoist kami, the Taoist immortal or zhenren, the Jewish tzadik, the Islamic walī/fakir, and the Buddhist arhat or bodhisattva also as saints. Depending on the religion, saints are recognized either by official declaration, as in Roman Catholicism, Oriental Orthodoxy or Eastern Orthodoxy, or by popular acclamation (see folk saint).

A biblical canon is a set of texts (also called "books") which a particular Jewish or Christian religious community regards as part of the Bible.

The English word canon comes from the Greek κανών kanōn, meaning 'rule' or 'measuring stick'. The word has been used to mean "the collection or list of books of the Bible accepted by the Christian Church as genuine and inspired" since the 14th century.

The foundation of Constantinople in 330 AD marks the conventional start of the Eastern Roman Empire, which fell to the Ottoman Empire in 1453 AD. Only the emperors who were recognized as legitimate rulers and exercised sovereign authority are included, to the exclusion of junior co-emperors who never attained the status of sole or senior ruler, as well as of the various usurpers or rebels who claimed the imperial title.

The following list starts with Constantine the Great, the first Christian emperor, who rebuilt the city of Byzantium as an imperial capital, Constantinople, and who was regarded by the later emperors as the model ruler. Modern historians distinguish this later phase of the Roman Empire as Byzantine due to the imperial seat moving from Rome to Byzantium, the Empire's integration of Christianity, and the predominance of Greek instead of Latin.

The Georgian Golden Age (Georgian: საქართველოს ოქროს ხანა, romanized: sakartvelos okros khana) describes a historical period in the High Middle Ages, spanning from roughly the late 11th to 13th centuries, during which the Kingdom of Georgia reached the peak of its power and development. In addition to military expansion, this period saw the flourishing of medieval Georgian architecture, painting and poetry, which was frequently expressed in the development of ecclesiastic art, as well as the creation of the first major works of secular literature.

Lasting more than two centuries, the Golden Age came to a gradual end due to persistent invasions of nomads, such as Mongols, as well as the spread of Black Death by these same nomadic groups. Georgia further weakened after the Fall of Constantinople, which effectively marked the end of the Eastern Roman Empire, Georgia's traditional ally. As a result of these processes, by the 15th century Georgia fractured and turned into an isolated enclave, largely cut off from Christian Europe and surrounded by hostile Islamic Turco-Iranic neighbors. For Georgia, the Golden Age forms an important part of its status as a once-powerful and ancient nation that maintained relations with Greece and Rome.

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.

A church service (or a worship service) is a formalized period of Christian communal worship, often held in a church building. Most Christian denominations hold church services on the Lord's Day (offering Sunday morning and Sunday evening services); a number of traditions have mid-week services, while some traditions worship on a Saturday. In some Christian denominations, church services are held daily, with these including those in which the seven canonical hours are prayed, as well as the offering of the Mass, among other forms of worship. In addition to this, many Christians attend services on holy days such as Christmas, Ash Wednesday, Good Friday, Ascension Thursday, among others depending on the Christian denomination.

The church service is the gathering together of Christians to be taught the "Word of God" (the Christian Bible) and encouraged in their faith. Technically, the church in "church service" refers to the gathering of the faithful rather than to the physical place in which it takes place. In most Christian traditions services are presided over by clergy wherever possible, but some traditions utilize lay preachers. Styles of service vary greatly, from the Catholic, Lutheran, Eastern Orthodox, Oriental Orthodox, Reformed (Continental Reformed, Presbyterian and Congregationalist) and Anglican traditions of liturgical worship to informal worship characterized by certain free church traditions, common among Methodists and Baptists, that often combine worship with teaching for the believers, which may also have an evangelistic component appealing to backsliders and the non-Christians in the congregation (cf. altar call). Quakers and some other groups have no formal outline to their services, but allow the worship to develop as the participants present feel moved.

Kardecist spiritism, also known as Kardecism or Spiritism, is a reincarnationist and spiritualist doctrine established in France in the mid-19th century by writer and educator Hippolyte Léon Denizard Rivail (known by his pen name Allan Kardec). Kardec considered his doctrine to derive from a Christian perspective. He described a cycle by which a spirit supposedly returns to material existence after the death of the body in which it had dwelled, as well as the evolution it undergoes during this process. Kardecism emerged as a new religious movement in tandem with spiritualism. The notions and practices associated with spiritual communication have been disseminated throughout North America and Europe since the 1850s.

Kardec coined the term spiritism in 1857 and defined it as "the doctrine founded on the existence, manifestations, and teachings of spirits". Kardec claimed that spiritism combines scientific, philosophical, and religious aspects of the tangible universe and what he described as the universe beyond transcendence. After observing table-turning, a kind of seance, he was intrigued that the tables seemed to move despite lacking muscles and that the tables seemed to provide answers without having a brain, the spiritualist claims being "It is not the table that thinks! It is us, the souls of the men who have lived on Earth." Kardec also focused his attention on a variety of other paranormal claims such as "incorporation" and mediumship.

Geoffrey of Monmouth (Latin: Galfridus Monemutensis, Galfridus Arturus; Welsh: Gruffudd ap Arthur, Sieffre o Fynwy; c. 1095 – c. 1155) was a Christian cleric from Monmouth, Wales, and one of the major figures in the popularity of tales of King Arthur.

He is best known for his chronicle The History of the Kings of Britain (Latin: De gestis Britonum or Historia Regum Britanniae) which was widely popular in its day, being translated into other languages from its original Latin. It was given historical credence well into the 16th century, but is now considered historically unreliable.

A church (or local church) is a Christian organization or congregation that meets in a particular location, often for worship. 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. The term is distinct from the use of the word "church" to mean a church building.

Local churches often relate with, affiliate with, or consider themselves to be constitutive parts of denominations, which are also called churches in many traditions. Depending on the tradition, these organizations may connect local churches to larger church traditions, ordain and defrock clergy, define terms of membership and exercise church discipline, and have organizations for cooperative ministry such as educational institutions and missionary societies. Non-denominational churches are not part of denominations, but may consider themselves part of larger church movements without institutional expression.

Ilm al-kalam or ilm al-lahut, often shortened to kalam, is the scholastic, speculative, or rational study of Islamic theology (aqida). It can also be defined as the science that studies the fundamental doctrines of Islamic faith (usul al-din), proving their validity, or refuting doubts regarding them rationally via logic. Kalām was born out of the need to establish and defend the tenets of Islam against philosophical doubters and non-Muslims, and also to defend against heretical and religious innovations (bidʿah). A scholar of kalam is referred to as a mutakallim (plural mutakallimun), a role distinguished from those of Islamic philosophers and jurists.

After its first beginnings in the late Umayyad period, the Kalām experienced its rise in the early Abbasid period, when the Caliph al-Mahdi commissioned Mutakallimūn to write books against the followers of Iranian religions, and the Barmakid vizier Yahya ibn Khalid held Kalām discussions with members of various religions and confessional groups in his house. By the 10th century, the Muʿtazilites were main pioneers of 'Kalam' during the early formative period of Islam. However, due to increased criticism by traditionalist Muslim scholars that the Mu'tazilites started departing from mainstream Sunni orthodoxy, they were refuted heavily. Soon after, two new important Sunni Kalām schools emerged: the Ashʿaris and the Maturidis. They positioned themselves against the growing Neoplatonic and Aristotelian philosophy within the Mu'tazilites and elevated the "Kalām science" (ʿilm al-kalām) as an acceptable ranking science in mainstream Sunni discourse. Some of the arguments of these Mutakallimūn also found their way into Jewish and Christian theological discussions in the Middle Ages. Kalām science by the early modern period was essentially limited to the study of manuals and commentaries, from the late 19th century onwards various reform thinkers appeared in British India and the Ottoman Empire who called for the founding of a "new Kalām".

The United Methodist Church (UMC) is a worldwide mainline Protestant Christian denomination based in Africa, The Philippines, Europe, and the United States claiming 10 million members, and is a major part of Methodism. In the 19th century, its main predecessor, the Methodist Episcopal Church, was a leader in evangelicalism. The present denomination was founded in 1968 in Dallas by union of the Methodist Church and the Evangelical United Brethren Church, and is shaped by the voluntary separation of 25% of the United States churches leading up to the delayed 2020 General Conference held in 2024. The UMC traces its roots back to the revival movement of John and Charles Wesley in England, as well as the Great Awakening in the United States. As such, the church's theological orientation is decidedly Wesleyan. It embraces liturgical worship, holiness, and evangelical elements. According to its Book of Discipline, "The mission of the Church is to make disciples of Jesus Christ for the transformation of the world."

The United Methodist Church has a connectional polity, a typical feature of a number of Methodist denominations. It is organized into conferences. The highest level is called the General Conference and is the only organization which may speak officially for the UMC. The church is a member of the World Council of Churches, the World Methodist Council, and other religious associations.

During the Muslim rule on Sicily, the island was divided into three different administrative regions: the Val di Noto in the southeast, the Val Demone in the northeast and the Val di Mazara in the west. Each zone has a noticeably different agriculture and topography and they converged near Castrogiovanni (Enna). The term val or vallo (plural: valli) is derived from Arabic (Siculo Arabic: وَلاية, romanized: walāya; compare وَلِيّ, waliyy), with the administrative meaning of 'province', and was retained for various administrative divisions of the Kingdom of Sicily until the 19th century.

There are many Arab-derived names in the Val di Mazara (and more Christians converted to Islam from this region), are more mixed in the Val di Noto, while Christian (particularly Greek) identities survived strongest in the Val Demone (with the least Arab-derived names), which was the last to fall to the Muslims, where Christian refugees from other parts of Sicily had assembled, and which furthermore remained in contact with Byzantine southern Italy. Even in present-day Sicily, differences between the east and west of the island are often explained by locals as being due to the Greek and Arab descent of the populations, respectively. Later Christian Lombard settlements would split the remaining Muslims of Sicily in half, separating the Val di Mazara and the Val di Noto.

Biblical law refers to the set of rules found in the Jewish Tanakh, and sometimes also Christian commentaries on these laws in the New Testament. Christianity and Judaism have different approaches to Jewish law.