What Is Nestorianism?

The concept of the hypostatic union, or the orthodox Christian belief that Jesus Christ had two natures – fully divine and fully human – has had various forms of opposition, including Nestorianism.

Oct 12, 2024By Ryan Watson, MA History, BA History

what is nestorianism nestorian thomas christianity

 

Nestorianism is an alternate Biblical viewpoint that Jesus Christ is not the Son of God, but is united with the Son (as the second Person of the Trinity) into one being, sometimes known as a ‘prosopic union’. This differs with the orthodox, standard Christian belief that the Son of God and Jesus are one and the same Person, not somehow different beings that have been united as one.

 

A Brief Summary of Nestorianism

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Early Eastern Nestorian practitioners. Source: Visit Istanbul

 

Nestorianism has taken various forms over the years. However, it generally theorizes how distinct Jesus and the Son were, and typically places a higher emphasis on the humanity of Christ than can be seen in the scripture of orthodox Christianity.  Various smaller Eastern churches tend to hold on to Nestorianism as a doctrine of one sort or another today.

 

Who Was Nestorius? Founder of Nestorianism

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Nestorius, the founder of Nestorianism

 

Nestorius was the Archbishop of Constantinople in the 400s CE.  He was trained under Theodore of Mopsuestia, and rose through the ranks as a monk and a priest. Not long after his arrival in Constantinople in 428, he became enmeshed in a controversy regarding the nature of the Son of God between two factions – one orthodox, and another which believed that the Son of God being born was impossible for an eternal God.  

 

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Nestorius attempted to find a middle ground between the two, declaring that Mary, the mother of Jesus was not theotokos (“God-bearer”) but Christotokos (“Christ-bearer”). However, his theory was rejected by both factions and eventually anathematized throughout the Western church at the Council of Ephesus.  

 

What Was the Council of Ephesus?

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Fresco depicting the Third Ecumenical Council in the narthex of the Church of Saint Athanasius the Athonite in the Great Lavra on Holy Mount Athos. Source: www.uec.eu

 

The Council of Ephesus was held in June and July of 431 CE in response to the controversial viewpoints raised by Nestorius. The Patriarch of Alexandria, named Cyril (412 – 444) was the primary disputer against Nestorius. 

 

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St Cyril, the Patriarch of Alexandria who opened the case against Nestorius. Source: Orthodox Church in America

 

Originally Nestorius had asked the Eastern Roman Emperor, Theodosius II, to call a council, thinking that he would prevail. Instead, after some highly contentious deliberations, the Council rejected Nestorius’s teachings about Jesus, particularly affirming the idea of Mary being Theotokos as orthodox.  It also confirmed the original Nicaean Creed. However, various eastern churches rejected the findings of the Council, and became thereby separated from the Western church.

 

Are There Still Practicing Nestorians Today?

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Icon depicting Saint Thomas the Apostle. Source: Saint George Indian Orthodox Church of Perth, Australia

 

The Church of the East, also known as the Assyrian or Persian Church, as well as the Nestorian Church, traces itself back to the apostle Thomas. It was the church which housed Nestorius after he fled following his condemnation at the Council of Ephesus, and it holds a form of Nestorianism as its doctrine today, though sometimes rejecting the term itself as a pejorative.  

 

In 1994, an agreement was reached between the Assyrian Church of the East and the Roman Catholic Church, called the Common Christological Declaration Between the Catholic Church and the Assyrian Church of the East, where both sides found common ground on their viewpoints, and made headway for common communion.

 

At times, Roman Catholics hold that some Protestants may be Nestorians, due to their hesitancy in using the theotokos title for Mary. However, protestants may claim the hesitancy arises more from an avoidance of the veneration of Mary, rather than any denial of the hypostatic union.

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By Ryan WatsonMA History, BA HistoryRyan Watson is a husband, father, underwriter, writer, and reseller. He graduated with a Bachelor's and Master's in History from Louisiana Tech University in the early 2000s. He focuses on Biblical, post-Biblical, and medieval history with occasional dabblings in other arenas.