Thursday, January 8

The Nestorian Controversy and the Council of Chalcedon


The major schism within the Christian community dominated the theological debates from the 4th and up to the 6-7th centuries. It was based on the opposition to Nicene and Arian Christians (especially in Western Europe and North Africa, where various Germanic states embraced Arianism). In the meantime, a new division began emerging in the 5th century: the Nestorian controversy.
This is especially important for the Near East, where it still has consequences, namely the schism between the Orthodox/Catholic churches and Nestorian communities (the Assyrian Church of the East and its offshoots).
It all started with a debate regarding the nature of Christ, opposing the Antiochene theological school (following the Logos-anthropos i.e. “the eternal Word assumed Jesus, the man” doctrine) and the Alexandrine one (Logos-sarx – “the Word became flesh”; O’Collins, 2009, p. 188).

The Controversy

The leaders of the two schools of thought were the Syrian Nestorius (386-450), Patriarch of Constantinople since 428, and Cyril of Alexandria (376-444), Patriarch of Alexandria since 412.

Nestorius’s Views

The big theological problem was how exactly Divinity (the eternal Word) could coexist with the human nature of Jesus. The most common theological explanation assimilated the God-Man relationship in Christ with the soul-flesh relationship in any human being. However, the difference between those substances is huge: an incomplete substance (the soul) versus a complete one (Deity).
The answer Nestorius gave to this unsatisfactory definition was to defend Christ’s integral humanity and Divinity by supporting two different and complete natures in conjunction (synapheia) with one another, within the same person (prosōpon, O’Collins, 2009, p. 190).
Although Nestorius did not go any further with this separation, his opponents accused him of trying to suggest a mere assumption of the human Jesus by God, with just a moral unity among them.
The practical consequences for the Church were significant. The events occurring to the human Jesus could not be also attributed to the Logos. The best examples here are the birth (the Theotokos – “Mother of God” title given to Mary, mentioned by Luke, 1:43: “And why has this happened to me, that the mother of my Lord comes to me?”; NRSV Bible) and the sacrifice on the cross.
The problem got worse as Nestorius and his followers gradually shifted towards the belief in two prosōpa, (persons), or even “two Sons” (O’Collins, 2009, p. 195). This prompted a reaction from the rest of the Church.

Cyril’s Views

Cyril supported the idea of the Word of God becoming flesh, thus getting accused by the Nestorian camp of unreasonably “mixing” the Divine and human nature.
“Hypostatically united” was his main characterization of Jesus’ nature, the Divine and human in one person and hypostasis (allowing, thus, the attribution of Jesus’ life events to the Logos), but rejecting any “mixing” of the two (O’Collins, 2009, p. 193).
However, he often shifted between one and two natures (physeis), a term that would soon become a central issue in theological debates. While, at the beginning of his activity, he was in favor of one single physis, he later changed to two natures, while still admitting a significant difference among the two natures forming the union.

The Resolution: Ephesus and Chalcedon

In June, 431, the Council of Ephesus, opened by Cyril himself and bringing together mainly his followers, condemned and excommunicated Nestorius and proclaimed Cyril’s second letter to Nestorius completely consonant with the Nicene Creed.
Patriarch John of Antioch, supporting Nestorius, organized his own Council, condemning Cyril and declaring the schism official. He and some of his adepts later reconciled with Cyril.
Cyril won the dispute, but the uncertainty regarding the one or two physeis and the way they got united caused another major rift. Soon after Cyril died, in 444, Eutyches (archimandrite of a monastery in Constantinople) claimed that the difference between the Word and the human nature was so serious that the former absorbed the latter (a doctrine called monophysitism).
The rise of monophysitism led to the Council of Chalcedon. Here, in November, 451, Cyril’s second letter to Nestorius and the one to John of Antioch were confirmed again. They were made part of the official dogma: two natures in one person, human and Divine, Jesus being consubstantial (homoousios) with the Father and mankind to the same degree. Both natures were complete and in no way mixed, changed by the union or somehow separated (O’Collins, 2009, p. 196).
In the words of The Council of Chalcedon’s Definition of Faith,  “the difference of the natures is not destroyed because of the union, but, on the contrary, the character of each nature is preserved and comes together in one person and one hypostasis” (in Norris, 1980, p. 159).
This excluded both the doctrines of Nestorius and Eutyches, deepening the rift with the Church of the East and opening a new rift with what were going to become the Oriental Orthodox Churches.


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