# Miaphysitism

Source: https://coptic-lore-forge.lovable.app/wiki/miaphysitism — Coptic Orthodox Wiki (updated 2026-10-02)

Coptic Christology affirms Christ’s perfect divinity and perfect humanity united in one nature, without mingling, confusion, or change, and rejects both Nestorianism and Eutychianism.[^1][^7]

## The unity of Christ

The Coptic teaching on Christ’s nature affirms that he is perfect in divinity and perfect in humanity, with both fully united in the incarnate Word. This unity is “one essence, one person, one hypostasis, one nature,” in which divine and human attributes remain together without mingling, confusion, or change.[^1]

In this account, the Word assumed human flesh with a human soul from the Virgin Mary. The union is understood not as a combination or joining of separate beings, but as a genuine unity of divinity and humanity.[^1]

## Cyrillian foundations

Cyril of Alexandria used the expression “hypostatic union” to emphasize the complete unity of the Divine Word and the flesh. The Word remained the Word while assuming flesh; Christ was not a compound of two independent natures.[^2]

The Alexandrian theologians led by Cyril taught that Jesus Christ was the eternal Logos under the condition of humanity. Actions attributed to Jesus as man were also attributed to the Divine Logos, and Mary was consequently called Theotokos, “Mother of God.”[^3]

## Chalcedon and doctrinal boundaries

The Council of Chalcedon in 451 declared Christ to be truly God and truly man, acknowledged in two natures “without confusion, without change, without division, without separation.” The non-Chalcedonian churches rejected the council’s definition while accepting the teaching of the fathers before Chalcedon.[^5]

At Chalcedon, Dioscorus defended the incarnate nature of the Logos rather than two natures after the Incarnation, appealing to Athanasius, Gregory, and Cyril.[^4] The Coptic position nevertheless rejected both the doctrines of Nestorianism and the basic elements of Eutychianism.[^7]

## Terminology and differing source accounts

The doctrine has been characterized in different ways. One formulation describes the incarnate Christ as having “one divine nature,” whereas another explicitly affirms perfect humanity and perfect divinity united in one nature. These are different presentations of the teaching and should not be treated as identical formulations.[^6][^1]

There is also a difference concerning the attribution of Christ’s actions: one passage states that Coptic theology rejected *communicatio idiomatum*, while another says that Alexandrian theologians attributed Jesus’ human actions to the Divine Logos.[^10][^3]

## The 1988 Christological statement

A Roman Catholic–Coptic statement was signed at the Anba Bishoi Monastery near Cairo on 12 February 1988. It affirms that Jesus Christ, the incarnate Word, is perfect in divinity and humanity, and that his humanity is one with his divinity.[^8] The statement continues that this union is “without mixture or confusion, unchanging and unaltered,” that his divinity was never separate from his humanity, and that the doctrines of Nestorius and Eutyches are both anathematized.[^9]

## Sources
[^1]: The Coptic Encyclopedia, Volume 2, Aziz S. Atiya (Editor in Chief) (p. 506)
[^2]: The Coptic Encyclopedia, Volume 4, Aziz S. Atiya (Editor in Chief) (p. 655)
[^3]: The Coptic Encyclopedia, Volume 6, Aziz S. Atiya (Editor in Chief) (p. 207)
[^4]: The Coptic Encyclopedia, Volume 3, Aziz S. Atiya (Editor in Chief) (p. 606)
[^5]: The Coptic Encyclopedia, Volume 2, Aziz S. Atiya (Editor in Chief) (p. 559)
[^6]: The Coptic Encyclopedia, Volume 5, Aziz S. Atiya (Editor in Chief) (p. 796)
[^7]: The Coptic Encyclopedia, Volume 6, Aziz S. Atiya (Editor in Chief) (p. 207)
[^8]: The Coptic Encyclopedia, Volume 6, Aziz S. Atiya (Editor in Chief) (p. 207)
[^9]: The Coptic Encyclopedia, Volume 6, Aziz S. Atiya (Editor in Chief) (p. 208)
[^10]: The Coptic Encyclopedia, Volume 2, Aziz S. Atiya (Editor in Chief) (p. 637)