Eastern Christianity in the context of Holy See

Christianity is an Abrahamic monotheistic religion, which states that Jesus is the Son of God and rose from the dead after his crucifixion, whose coming as the messiah (Christ) was prophesied in the Old Testament and chronicled in the New Testament. It is the world's largest and most widespread religion with over 2.3 billion followers, comprising around 28.8% of the world population. Its adherents, known as Christians, are estimated to make up a majority of the population in 120 countries and territories.

Christianity remains culturally diverse in its Western and Eastern branches, and doctrinally diverse concerning justification and the nature of salvation, ecclesiology, ordination, and Christology. Most Christian denominations, however, generally hold in common the belief that Jesus is God the Son—the Logos incarnated—who ministered, suffered, and died on a cross, but rose from the dead for the salvation of humankind; this message is called the gospel, meaning the "good news". The four canonical gospels of Matthew, Mark, Luke and John describe Jesus' life and teachings as preserved in the early Christian tradition, with the Old Testament as the gospels' respected background.

Antiochian Greek Christians (also known as Rūm) are an ethnoreligious Eastern Christian group native to the Levant. The majority of its members identify as Arab, though some of the members reject the Arab label and instead identify as Greek. They are either members of the Greek Orthodox Church of Antioch or the Melkite Greek Catholic Church, and they have ancient roots in what is now Syria, Lebanon, Israel, Palestine, Jordan, the southern Turkish province of Hatay, which includes the city of Antakya (ancient Antioch—one of the holiest cities in Eastern Christianity). Many of their descendants now live in the global Near Eastern Christian diaspora. They primarily speak Levantine Arabic, with Maaloula near Damascus being one of the few places where a Western Aramaic dialect is still spoken.

The Greek Orthodox Patriarchate of Antioch (Greek: Ελληνορθόδοξο Πατριαρχείο Αντιοχείας), also known as the Antiochian Orthodox Church and legally as the Rūm Orthodox Patriarchate of Antioch and All the East (Arabic: بطريركيّة أنطاكية وسائر المشرق للروم الأرثوذكس, romanized: Baṭriyarkiyyat ʾAnṭākiya wa-Sāʾir al-Mašriq li-r-Rūm al-ʾUrṯūḏuks, lit. 'Patriarchate of Antioch and All the East for the Orthodox Rum'), is an autocephalous Greek Orthodox church within the wider communion of Eastern Orthodox Christianity that originates from the historical Church of Antioch. Headed by the Greek Orthodox patriarch of Antioch, it considers itself the successor to the Christian community founded in Antioch by the Apostles Peter and Paul. It is one of the largest Christian denominations of the Middle East, alongside the Copts of Egypt and the Maronites of Lebanon.

Its adherents, known as Antiochian Christians, are a Middle-Eastern semi-ethnoreligious Eastern Christian group residing in the Levant region, including the Hatay Province of Turkey. Many of their descendants now live in the global Eastern Christian diaspora. The number of Antiochian Greek Christians is estimated to be approximately 4.3 million.

An icon (from Ancient Greek εἰκών (eikṓn) 'image, resemblance') is a religious work of art, most commonly a painting, in the cultures of the Eastern Orthodox, Oriental Orthodox, Catholic, and Lutheran churches. The most common subjects include Jesus, Mary, saints, and angels. Although especially associated with portrait-style images concentrating on one or two main figures, the term also covers most of the religious images in a variety of artistic media produced by Eastern Christianity, including narrative scenes, usually from the Bible or the lives of saints.

Icons are most commonly painted on wood panels with egg tempera, but they may also be cast in metal or carved in stone or embroidered on cloth or done in mosaic or fresco work or printed on paper or metal, etc. Comparable images from Western Christianity may be classified as "icons", although "iconic" may also be used to describe the static style of a devotional image. In the Greek language, the term for icon painting uses the same word as for "writing", and Orthodox sources often translate it into English as icon writing.

Eastern Europe is a subregion of the European continent. As a largely ambiguous term, it has a wide range of geopolitical, geographical, ethnic, cultural and socio-economic connotations. Its eastern boundary is marked by the Ural Mountains, and its western boundary is defined in various ways. Narrow definitions, in which Central and Southeast Europe are counted as separate regions, include Belarus, Russia and Ukraine. In contrast, broader definitions include Moldova and Romania, but also some or all of the Balkans, the Baltic states, the Caucasus, and the Visegrád group. In Eastern Europe, Russia is the largest and most populous country.

The region represents a significant part of European culture; the main socio-cultural characteristics of Eastern Europe have historically largely been defined by the traditions of the Slavs, as well as by the influence of Eastern Christianity as it developed through the Eastern Roman Empire and the Ottoman Empire. Another definition was created by the Cold War, as Europe was ideologically divided by the Iron Curtain, with "Eastern Europe" being synonymous with communist states constituting the Eastern Bloc under the influence of the Soviet Union.

In the history of Christianity, the first seven ecumenical councils are as follows: the First Council of Nicaea in 325, the First Council of Constantinople in 381, the Council of Ephesus in 431, the Council of Chalcedon in 451, the Second Council of Constantinople in 553, the Third Council of Constantinople from 680 to 681 and finally, the Second Council of Nicaea in 787.

These seven events represented an attempt by Church leaders to reach an orthodox consensus, restore peace and develop a unified Christendom. Among Eastern Christians the Eastern Orthodox, Oriental Orthodox, and Church of the East (Assyrian) churches and among Western Christians the Roman Catholic, Anglican, Utrecht and Polish National Old Catholic, and some Scandinavian Lutheran churches all trace the legitimacy of their clergy by apostolic succession back to this period and beyond, to the earlier period referred to as the Early Church.

In Christian theology and ecclesiology, the apostles, particularly the Twelve Apostles (also known as the Twelve Disciples or simply the Twelve), were the primary disciples of Jesus according to the New Testament. During the life and ministry of Jesus in the 1st century AD, the apostles were his closest followers and became the primary teachers of the gospel message of Jesus. There is also an Eastern Christian tradition derived from the Gospel of Luke that there were seventy apostles during the time of Jesus' ministry.

The commissioning of the Twelve Apostles during the ministry of Jesus is described in the Synoptic Gospels. After his resurrection, Jesus sent eleven of them (as Judas Iscariot by then had died) by the Great Commission to spread his teachings to all nations.

A synaxis (Greek: σύναξις "gathering"; Slavonic: собор, sobor) is a liturgical assembly in Eastern Christianity (the Eastern Orthodox Church and those Eastern Catholic Churches which follow the Byzantine Rite).

The epiclesis (also spelled epiklesis; from Ancient Greek: ἐπίκλησις, lit. 'surname' or 'invocation') refers to the invocation of one or several gods. In ancient Greek religion, the epiclesis was the epithet used as the surname given to a deity in religious contexts. The term was borrowed into the Christian tradition, where it designates the part of the Anaphora (Eucharistic Prayer) by which the priest invokes the Holy Spirit (or the power of God's blessing) upon the Eucharistic bread and wine in some Christian churches. In most Eastern Christian traditions, the Epiclesis comes after the Anamnesis (remembrance of Jesus' words and deeds); in the Western Rite it usually precedes. In the historic practice of the Western Christian Churches, the consecration is effected at the Words of Institution, though during the rise of the Liturgical Movement, many denominations introduced an explicit epiclesis in their liturgies.

Mary was a first-century Jewish woman of Nazareth, the wife of Joseph and the mother of Jesus. She is an important figure of Christianity, venerated under various titles such as virgin or queen, many of them mentioned in the Litany of Loreto. The Eastern and Oriental Orthodox, Catholic, Evangelical Lutheran, Reformed, Anglican, Methodist and Baptist churches believe that Mary, as mother of Jesus, is the Mother of God. The Church of the East historically regarded her as Christotokos, a term still used in Assyrian Church of the East liturgy. She has the highest position in Islam among all women and is mentioned numerous times in the Quran, including in a chapter named after her. She is also revered in the Baháʼí Faith and the Druze Faith.

The synoptic Gospels name Mary as the mother of Jesus. The gospels of Matthew and Luke describe Mary as a virgin who was chosen by God to conceive Jesus through the Holy Spirit. After giving birth to Jesus in Bethlehem, she and her husband Joseph raised him in the city of Nazareth in Galilee, and she was in Jerusalem at his crucifixion and with the apostles after his ascension. Although her later life is not accounted in the Bible; Catholic, Eastern Orthodox, and some Protestant traditions believe that her body was raised into heaven at the end of her earthly life, which is known in Western Christianity as the Assumption of Mary and in Eastern Christianity as the Dormition of the Mother of God.

Theotokos (Koine Greek: Θεοτόκος) is a title of Mary, mother of Jesus, used especially in Eastern Christianity. The usual Latin translations are Dei Genitrix or Deipara (approximately "parent [fem] of God"). Common English translations are "Mother of God" or "God-bearer" – but these both have different literal equivalents in Ancient Greek: Μήτηρ Θεοῦ, and Θεοφόρος respectively.

The title has been in use since the 3rd century, and in the Liturgy of Saint James (4th century). The Council of Ephesus in AD 431 decreed that Mary is the Theotokos because her son Jesus is both God and man: one divine person from two natures (divine and human) intimately and hypostatically united.

Marian devotions are external pious practices directed to the person of Mary, mother of Jesus, by members of certain Christian traditions. They are performed in Catholicism, High Church Lutheranism, Anglo-Catholicism, Eastern Orthodoxy and Oriental Orthodoxy, but other Christian denominations mostly reject them.

Such devotional prayers may be accompanied by specific requests for Mary's intercession with God. There is significant diversity of form and structure in Marian devotions practiced by different groups of Christians. Orthodox Marian devotions are well-defined and closely linked to liturgy, while Roman Catholic practices are wide-ranging—they include multi-day prayers such as novenas, the celebration of canonical coronations granted by the Pope, the veneration of icons in Eastern Christianity, and pious acts which do not involve vocal prayers, such as the wearing of scapulars or maintaining a Mary garden.

A crozier or crosier (also known as a paterissa, pastoral staff, or bishop's staff) is a stylized staff that is a symbol of the governing office of a bishop or abbot and is carried by high-ranking prelates of Roman Catholic, Eastern Catholic, Eastern Orthodox, Oriental Orthodox, Malankara Mar Thoma Syrian Church, Church of South India and some Anglican, Lutheran, United Methodist and Pentecostal churches.

In Western Christianity the crozier typically takes the form of a shepherd's crook, a tool used to manage flocks of sheep and herds of goats. In Eastern Christianity, the crozier has two common forms: tau-shaped, with curved arms, surmounted by a small cross; or a pair of sculptured serpents or dragons curled back to face each other, with a small cross between them.

Christendom or the Christian world are terms commonly used to refer to the global Christian community, Christian states, Christian-majority countries or countries in which Christianity is dominant or prevails.

Following the spread of Christianity from the Levant to Europe and North Africa during the early Roman Empire, Christendom has been divided in the pre-existing Greek East and Latin West. After the Great schism of 1054, two main branches within Christianity emerged, centred around the cities of Rome (Western Christianity, whose community was called Western or Latin Christendom) and Constantinople (Eastern Christianity, whose community was called Eastern Christendom or Byzantine commonwealth). After the fall of Constantinople in 1453, Latin Christendom rose to a central role in the Western world. Following the reformation, protestantism emerged as the third main branch of Christianity in the 16th century. The history of the Christian world spans about 2,000 years and includes a variety of socio-political developments, as well as advancements in the arts, architecture, literature, science, philosophy, politics and technology.

A Gospel Book, Evangelion, or Book of the Gospels (Greek: Εὐαγγέλιον, Evangélion) is a codex or bound volume containing one or more of the four Gospels of the Christian New Testament – normally all four – centering on the life of Jesus of Nazareth and the roots of the Christian faith. The term is also used for a liturgical book, also called the Evangeliary, from which are read the portions of the Gospels used in the Mass and other services, arranged according to the order of the liturgical calendar.

Liturgical use in churches of a distinct Gospel book remains normal, often compulsory, in Eastern Christianity, and very common in Roman Catholicism and some parts of Anglicanism and Lutheranism.

Western Christianity is one of two subdivisions of Christianity (Eastern Christianity being the other). Western Christianity is composed of the Latin Church and Western Protestantism, together with their offshoots such as the Old Catholic Church, Independent Catholicism and Restorationism.

The large majority of the world's 2.3 billion Christians are Western Christians (about 2 billion: 1.3 billion Latin Catholic and 1.17 billion Protestant). One major component, the Latin Church, developed under the bishop of Rome. Out of the Latin Church emerged a wide variety of independent Protestant denominations, including Lutheranism and Anglicanism, starting from the Protestant Reformation in the 16th century, as did Independent Catholicism in the 19th century. Thus, the term "Western Christianity" does not describe a single communion or religious denomination but is applied to distinguish all these denominations collectively from Eastern Christianity.

Christian culture generally includes all the cultural practices which have developed around the religion of Christianity. There are variations in the application of Christian beliefs in different cultures and traditions.

Christian culture has influenced and assimilated much from the Middle Eastern, Greco-Roman, Byzantine, Western culture, Slavic and Caucasian culture. During the early Roman Empire, Christendom has been divided in the pre-existing Greek East and Latin West. Consequently, different versions of the Christian cultures arose with their own rites and practices, Christianity remains culturally diverse in its Western and Eastern branches.

The history of Christianity in Ukraine dates back to the earliest centuries of the history of Christianity, to the Apostolic Age, with mission trips along the Black Sea and a legend of Andrew the Apostle even ascending the hills of Kiev. The first Christian community on territory of modern Ukraine is documented as early as the 4th century with the establishment of the Metropolitanate of Gothia, which was centered in the Crimean peninsula. However, on territory of the Old Rus in Kiev, Christianity became the dominant religion since its official acceptance in 989 by Vladimir the Great (Volodymyr the Great), who brought it from Byzantine Crimea and installed it as the state religion of medieval Kievan Rus (Ruthenia), with the metropolitan see in Kiev.

Although separated into various Christian denominations, most Ukrainian Christians share a common faith based on Eastern Christianity. This tradition is represented in Ukraine by the Byzantine Rite, the Eastern Orthodox and Eastern Catholic churches, which have been at various historic times closely aligned with Ukrainian national self-identity and Byzantine culture.

The Oriental Orthodox Churches are Eastern Christian churches adhering to Miaphysite Christology, with approximately 60 million members worldwide. However, the Oriental Orthodox Churches, individually, claim approximately 87 million baptized members. The Oriental Orthodox Churches adhere to the Nicene Christian tradition. Oriental Orthodoxy is one of the oldest branches in Christianity.

As some of the oldest religious institutions in the world, the Oriental Orthodox Churches have played a prominent role in the history and culture of countries and regions such as Armenia, Egypt, Eritrea, Ethiopia, Sudan, the Levant, Iraq and the Malabar region of southern India. As autocephalous churches, their bishops are equal by virtue of episcopal ordination. Their doctrines recognize only the first three ecumenical councils as valid.