The Chalcedonian Definition is the declaration of the dyophysitism of Christ's nature, adopted at the Council of Chalcedon in AD 451. Chalcedon was an early centre of Christianity located in Asia Minor. The council was the fourth of the ecumenical councils that are accepted by Chalcedonian churches which include the Catholic and Orthodox churches.
The Council of Chalcedon was the fourth ecumenical council of the Christian Church. It was convoked by the Roman emperor Marcian. The council convened in the city of Chalcedon, Bithynia from 8 October to 1 November 451. The council was attended by over 520 bishops or their representatives, making it the largest and best-documented of the first seven ecumenical councils. The principal purpose of the council was to re-assert the teachings of the ecumenical Council of Ephesus against the teachings of Eutyches and Nestorius. Such doctrines viewed Christ's divine and human natures as separate (Nestorianism) or viewed Christ as solely divine (monophysitism).
Monothelitism, or monotheletism was a theological doctrine in Christianity that was proposed in the 7th century, but was ultimately rejected by the sixth ecumenical council. It held Christ as having only one will and was thus contrary to dyothelitism, the Christological doctrine accepted by most Christian denominations, which holds Christ as having two wills. Historically, monothelitism was closely related to monoenergism, a theological doctrine that holds Jesus Christ as having only one energy. Both doctrines were at the center of Christological disputes during the 7th century.
Chalcedonian Christianity is a term referring to the branches of Christianity that accept and uphold theological resolutions of the Council of Chalcedon, the fourth ecumenical council, held in 451. Chalcedonian Christianity accepts the Christological Definition of Chalcedon, a Christian doctrine concerning the union of two natures 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.
Nestorius was an early Christian prelate who served as Archbishop of Constantinople from 10 April 428 to August 431. A Christian theologian from the Catechetical School of Antioch, several of his teachings in the fields of Christology and Mariology were seen as controversial and caused major disputes.
Patriarchate is an ecclesiological term in Christianity, designating the office and jurisdiction of an ecclesiastical patriarch. According to Christian tradition three patriarchates were established by the apostles as apostolic sees in the 1st century: Rome, Antioch, and Alexandria. Constantinople was added in the 4th century and Jerusalem in the 5th century. Eventually, together, these five were recognised as the pentarchy by the Council of Chalcedon in 451.
The Syriac Orthodox Church, also known as West Syriac Church or West Syrian Church, officially known as the Syriac Orthodox Patriarchate of Antioch and All the East, and informally as the Jacobite Church, is an Oriental Orthodox church that branched from the Church of Antioch. The bishop of Antioch, known as the patriarch, heads the church and possesses apostolic succession through Saint Peter, according to sacred tradition. The church upholds Miaphysite doctrine in Christology, and employs the Liturgy of Saint James, associated with James the Just. Classical Syriac is the official and liturgical language of the church.
Jacob Baradaeus, also known as Jacob bar Addai or Jacob bar Theophilus, was the Bishop of Edessa from 543/544 until his death in 578. He is venerated as a saint in the Oriental Orthodox Churches and his feast day is 31 July. Jacob's missionary efforts helped establish the non-Chalcedonian Syriac Orthodox Church, also known as the "Jacobite" Church after its eponymous leader, and ensured its survival despite persecution.
The Patriarch of Antioch is a traditional title held by the bishop of Antioch. As the traditional "overseer" of the first gentile Christian community, the position has been of prime importance in Pauline Christianity from its earliest period. This diocese is one of the few for which the names of its bishops from the apostolic beginnings have been preserved. Today five churches use the title of patriarch of Antioch: one Eastern Orthodox ; one Oriental Orthodox ; and three Eastern Catholic.
Dioscorus I, also known as Dioscorus the Great, was the pope of Alexandria and patriarch of the See of St. Mark who was deposed by the Council of Chalcedon in 451. He was recognized as patriarch by the Coptic Church until his death. He died in Gangra, Paphlagonia, in September 454. He is venerated as a saint by the Coptic and other Oriental Orthodox Churches.
Severus the Great of Antioch, also known as Severus of Gaza or the Crown of Syrians, was the Patriarch of Antioch, and head of the Syriac Orthodox Church, from 512 until his death in 538. He is venerated as a saint in the Oriental Orthodox Church, and his feast day is 8 February.
The Henotikon was a christological document issued by Byzantine emperor Zeno in 482, in an unsuccessful attempt to reconcile the differences between the supporters of the Council of Chalcedon and the council's opponents. It was followed by the Acacian schism.
Syriac Christianity is a branch of Eastern Christianity of which formative theological writings and traditional liturgies are expressed in the Classical Syriac language, a variation of the old Aramaic language. In a wider sense, the term can also refer to Aramaic Christianity in general, thus encompassing all Christian traditions that are based on liturgical uses of the Aramaic language and its variations, both historical and modern.
The term Melkite, also written Melchite, refers to various Eastern Christian churches of the Byzantine Rite and their members originating in West Asia. The term comes from the common Central Semitic root m-l-k, meaning "royal", referring to the loyalty to the Byzantine emperor. The term acquired religious connotations as denominational designation for those Christians who accepted imperial religious policies, based on Christological resolutions of the Council of Chalcedon (451).
Miaphysitism is the Christological doctrine that holds Jesus, the "Incarnate Word, is fully divine and fully human, in one 'nature' (physis)." It is a position held by the Oriental Orthodox Churches. It differs from the Dyophysitism of the Catholic Church, Eastern Orthodox Churches, and the major Protestant denominations as defined by the Council of Chalcedon in 451, which holds that that Jesus is one "person" in two "natures", a divine nature and a human nature. Both miaphysitism and dyophysitism are oppositional to monophysitism, which all mainstream Christian communions view as heretical.
The Second Council of Ephesus was a Christological church synod in 449 convened by Emperor Theodosius II under the presidency of Pope Dioscorus I of Alexandria. It was intended to be an ecumenical council, and it is accepted as such by the miaphysite churches but was rejected by Chalcedonian Christians. It was explicitly repudiated by the next council, the Council of Chalcedon of 451, recognised as the fourth ecumenical council by Chalcedonian Christians, and it was named the Latrocinium by Pope Leo I; the Chalcedonian churches, particularly the Roman Catholic and Eastern Orthodox communions, continue to accept this designation, while the Oriental Orthodox repudiate it.
Oriental Orthodoxy is the communion of Eastern Christian Churches that recognize only three ecumenical councils—the First Council of Nicaea, the First Council of Constantinople and the Council of Ephesus. They reject the dogmatic definitions of the Council of Chalcedon. Hence, these Churches are also called Old Oriental Churches or Non-Chalcedonian Churches.
The Oriental Orthodox Churches are Eastern Christian churches adhering to Miaphysite Christology, with approximately 50 million members worldwide. The Oriental Orthodox Churches adhere to the Nicene Christian tradition. Oriental Orthodoxy is one of the oldest branches in Christianity.
The Third Council of Ephesus was held in the Anatolian city of Ephesus in 475. It was presided over by Pope Timothy II of Alexandria, and also attended by Peter the Fuller, then Patriarch of Antioch, and Paul the Exarch of Ephesus. It ratified a recent Encyclical of Emperor Basiliscus, reportedly signed by 500-700 bishops throughout the Empire, which condemned the Council of Chalcedon and particularly the Tome of Leo. This council thus constitutes one of the most significant synodical condemnations of Chalcedon for the Oriental Orthodox. In response to the accusations of certain Chalcedonians that they, the Non-Chalcedonians, had adopted the erroneous teachings of Eutyches, the attendees of Ephesus III summarily anathematized all teachings which compromised the humanity of Christ, but without any explicit mention of Eutyches. Additionally, the council restored the complete autonomy of the Ecclesiastical Exarchate of Ephesus, which had been compromised at Chalcedon by ascribing authority to the Patriarch of Constantinople over Thrace, Pontus, and Asia.
The First Council of Dvin was a church council held in 506 in the city of Dvin. It convened to discuss the Henotikon, a christological document issued by Byzantine emperor Zeno in an attempt to resolve theological disputes that had arisen from the Council of Chalcedon.
