Dyophysitism in the context of "Chalcedonian"

In Christian theology, the incarnation is the belief that the pre-existent divine person of Jesus Christ, God the Son, the second person of the Trinity, who is also the Logos (Koine Greek for 'word'), was "made flesh" by being conceived through the power of the Holy Spirit in the womb of a woman, the Virgin Mary, who is also known as the Theotokos (Greek for "God-bearer" or "Mother of God"). The doctrine of the incarnation then entails that Jesus was at the same time both fully God and fully human.

In the incarnation, as traditionally defined by those Churches that adhere to the Council of Chalcedon, the divine nature of the Son was united but not mixed with human nature in one divine person, Jesus, or according to those adhering to the Council of Ephesus, the divine and human natures of Christ are fully united into one composite nature "without mixing, confusion, or separation". This is central to the traditional faith held by most Christians. Alternative views on the subject (see Ebionites and the Gospel of the Hebrews) have been proposed throughout the centuries, but all were rejected by Nicene Christianity.

In the year before the First Council of Constantinople in 381, Nicene Christianity became the official religion of the Roman Empire when Theodosius I, emperor of the East, Gratian, emperor of the West, and Gratian's junior co-ruler Valentinian II issued the Edict of Thessalonica in 380, which recognized the catholic orthodoxy, as defined by the Council of Nicea, as the Roman Empire's state religion. Historians refer to this state-sponsored church using a variety of terms: the catholic church, the orthodox church, the imperial church, the Roman church, or the Byzantine church, with some also used for wider communions extending beyond the Roman Empire. The Eastern Orthodox Church, Oriental Orthodoxy, and the Catholic Church all claim to stand in continuity from the Nicene Christian church to which Theodosius granted recognition. Political differences between the Eastern Roman Empire and the Persian Sassanid Empire led to the separation of the Church of the East in 424. A doctrinal split within the imperial church led to the independence of early Oriental Orthodoxy, while the fall of the Western Roman Empire initiated the gradual separation between Eastern and Western Christianity, culminating in the East-West schism of 1054. The Western Church evolved into the Latin Catholic Church while the Eastern Church that remained under the patronage of the Eastern empire and evolved into the Greek Orthodox Church.

Earlier in the 4th century, following the Diocletianic Persecution of 303–313 and the Donatist controversy that arose in consequence, Constantine the Great had convened councils of bishops to define the orthodoxy of the Christian faith and to expand on earlier Christian councils. A series of ecumenical councils convened by successive Roman emperors met during the 4th and the 5th centuries, but Christianity continued to suffer rifts and schisms surrounding the theological and christological doctrines of Arianism, Nestorianism, Miaphysitism, and Dyophysitism. In the 5th century, the Western Roman Empire decayed as a polity; invaders sacked Rome in 410 and in 455, and Odoacer, an Arian barbarian warlord, forced Romulus Augustus, the last nominal Western Emperor, to abdicate in 476. However, apart from the aforementioned schisms, the church as an institution persisted in communion, if not without tension, between the East and West. In the 6th century, the Byzantine armies of the Byzantine Emperor Justinian I recovered Italy and other regions of the Western Mediterranean shore. The Byzantine Empire soon lost most of these gains, but it held Rome, as part of the Exarchate of Ravenna, until 751, a period known in church history as the Byzantine Papacy. The early Muslim conquests of the 7th–9th centuries would begin a process of converting most of the then-Christian world in the Levant, Middle East, North Africa, regions of Southern Italy and the Iberian Peninsula to Islam, severely restricting the reach both of the Byzantine Empire and of its church. Christian missionary activity directed from the capital of Constantinople did not lead to a lasting expansion of the formal link between the church and the Byzantine emperor, since areas outside the Byzantine Empire's political and military control set up their own distinct churches, as in the case of Bulgaria in 919.

Chalcedonian Christianity is the branch of Christianity that accepts and upholds theological resolutions of the Council of Chalcedon, the fourth ecumenical council, held in AD 451. Chalcedonian Christianity accepts the Christological Definition of Chalcedon, a Christian doctrine concerning the union of two natures (divine and human) in one hypostasis of Jesus Christ, who is thus acknowledged as a single person (prosopon). Chalcedonian Christianity also accepts the Chalcedonian confirmation of the Niceno-Constantinopolitan Creed, thus acknowledging the commitment of Chalcedonism to Nicene Christianity.

Chalcedonian Christology is upheld by Roman Catholicism, Eastern Orthodoxy, Lutheranism, Anglicanism and Calvinism (Reformed Christianity), thus comprising the overwhelming majority of Christianity.

Non-Chalcedonian Christianity comprises the branches of Christianity that do not accept and uphold theological resolutions of the Council of Chalcedon, the council following Ephesus, held in 451. Non-Chalcedonian denominations reject the Christological Definition of Chalcedon (which asserted Dyophysitism), for varying reasons. Non-Chalcedonian Christianity thus stands in contrast to Chalcedonian Christianity.

Today, the Oriental Orthodox Churches predominantly comprise most of non-Chalcedonian Christianity.

Miaphysitism (/maɪˈæfɪsaɪtɪzəm, miː-/) is the Christological doctrine that holds Jesus, the Incarnate Word, is fully divine and fully human, in one nature or physis (Greek: φύσις). It is the position held by the Oriental Orthodox Churches. It differs from the dyophysitism of the Catholic Church, Eastern Orthodox Church, the Church of the East and major Protestant denominations, which holds that Jesus is one Person with two natures (divine and human) as defined by the Council of Chalcedon in 451.

While historically a major point of controversy within Christianity, some modern declarations by both Chalcedonian and miaphysite Churches claim that the difference between the two Christological formulations does not reflect any significant difference in belief about the nature of Christ. Other statements from both Chalcedonian and miaphysite churches claim that such difference is indeed theological but has been "widened by non-theological factors".

Metropolitanate of India (Syriac: Beth Hindaye) was an East Syriac ecclesiastical province of the Church of the East, at least nominally, from the seventh to the sixteenth century. The Malabar region (Kerala) of India had long been home to a thriving Eastern Christian community, known as the Saint Thomas Christians. The community traces its origins to the evangelical activity of Thomas the Apostle in the 1st century. The Christian communities in India used the East Syriac Rite, the traditional liturgical rite of the Church of the East. They also adopted some aspects of Dyophysitism of Theodore of Mopsuestia, often inaccurately referred as Nestorianism, in accordance with theology of the Church of the East. It is unclear when the relation between Saint Thomas Christian and the Church of the East was established. Initially, they belonged to the metropolitan province of Fars, but were detached from that province in the 7th century, and again in the 8th, and given their own metropolitan bishop.

Due to the distance between India and the seat of the Patriarch of the Church of the East, communication with the church's heartland was often spotty, and the province was frequently without a bishop. An eleventh-century reference states that the metropolitan province of India had been 'suppressed', due to communication difficulties. At the beginning of the fourteenth century the Indian Church was again dependent on the Church of the East. Although India was supplied with bishops from the Middle East, the effective control lay in the hands of an indigenous priest known as Arkkadiyakkon or Archdeacon. He was the community leader of Saint Thomas Christians. Even in times when there were multiple foreign bishops, there was only one archdeacon for entire Saint Thomas Community. As such, the Indian church was largely autonomous in operation, though the authority of the Patriarch was always respected.