Second Council of Constantinople (553)

The problem left by Chalcedon

The Council of Chalcedon had confessed in 451 a Christ in two natures, without confusion, without change, without division and without separation. This definition protects both the true divinity and the true humanity of Christ. But in several Churches of Egypt, Syria and Palestine, it was received with suspicion: many feared that the expression "in two natures" opened the door to a Nestorian separation between the Word of God and the man Jesus.^[4]

This suspicion explains the political and pastoral stakes of the sixth century. Justinian did not want to abolish Chalcedon; he wanted to obtain its wider acceptance by removing from the council's adversaries one precise argument: the idea that Chalcedon had protected authors or texts linked to the most anti-Cyrillian Antiochene school.^[5]

The Three Chapters

The expression "Three Chapters" does not designate three book chapters. It designates three doctrinal cases: the person and writings of Theodore of Mopsuestia, certain writings of Theodoret of Cyrus against Saint Cyril and against Ephesus, and the letter attributed to Ibas of Edessa to Maris the Persian.^[6]

The council judges that these texts cannot be invoked in the name of Chalcedon. In other words, it distinguishes the Catholic definition of 451 from certain polemical uses that Nestorianizing authors claimed to draw from it.^[7]

Justinian's aim

Justinian himself presents the convocation as an attempt to unify the Churches and to secure acceptance of the four preceding councils. In the letter read at the first session, he affirms his will to restore communion around Nicaea, Constantinople I, Ephesus and Chalcedon, then denounces the defenders of Nestorius who rely on Theodore, Theodoret and Ibas.^[8]

The imperial calculation was risky, however. By touching men who were dead, some of whom had been rehabilitated or reintegrated at Chalcedon, Justinian gave the Latins the impression of reopening an already closed trial. The problem thus became twofold: doctrinal, because Christology had to be clarified; ecclesial, because Chalcedon must not seem to be corrected under imperial pressure.^[9]

A predominantly Eastern assembly

The council was held at Constantinople from May 5 to June 2, 553. The Catholic Encyclopedia records eight sessions and notes that the Western presence was very small: the council gathered mostly Eastern bishops, with only a few Western bishops.^[10]

This disproportion explains much of the crisis. Vigilius wanted a council in Italy or Sicily, or at least a balanced representation of East and West. Justinian refused and opened the council by his imperial authority. The result was a council ecumenical in its final reception, but highly conflictual in its immediate course.^[11]

The lost Greek acts

The original Greek acts have not been preserved. What survives is an ancient Latin version, probably contemporary and linked to the Vigilius dossier. This situation requires Constantinople II to be read with method: its doctrinal substance was received by the Church, but the textual history of the acts remains complex.^[12]

The modern reference edition in English is Richard Price's The Acts of the Council of Constantinople of 553, published by Liverpool University Press in 2009 in the Translated Texts for Historians series. It gathers the acts, the texts linked to the Three Chapters controversy, Vigilius's Constituta and appendices on Origen.^[13]

Justinian, the theologian-emperor

Justinian was no mere administrative arbiter. He wrote, convened, pressed, sanctioned, and sought to obtain a doctrinal line capable of pacifying the Christian Empire. His religious aim was real: he wanted to protect the faith of Nicaea, Ephesus and Chalcedon. But his methods created a lasting tension between imperial authority, conciliar freedom and Roman reception.^[14]

This tension is visible in the very vocabulary of the sources. The council acted as an assembly of bishops, but the emperor tightly framed the process. The crisis shows how closely, in late Antiquity, doctrinal unity, political order and ecclesial communion were still intertwined.

Vigilius, a pope under pressure

Pope Vigilius arrived in Constantinople in an extraordinarily difficult situation. Since 547 he had been detained in the imperial capital. He had first refused to condemn the Three Chapters, then published the Judicatum of 548 condemning them while explicitly maintaining the authority of Chalcedon; the Western reaction was very harsh.^[15]

In May 553, Vigilius refused to sit at the council. He published the first Constitutum of May 14: he condemned several propositions of Theodore of Mopsuestia, but forbade condemning his person, the writings of Theodoret and the letter of Ibas beyond a certain limit.^[16]

The rupture reached its extreme point when Vigilius's name was removed from the diptychs at the seventh session, without formally breaking communion with the Apostolic See. After the council, Vigilius ended by confirming the condemnation of the Three Chapters: letter to Eutychius of December 8, 553, then the second Constitutum of February 23, 554.^[17]

Eutychius of Constantinople and the Eastern patriarchs

Effective presidency fell to Eutychius, Patriarch of Constantinople, successor of Mennas. The patriarchs or representatives of Alexandria, Antioch and Jerusalem were associated with the case. The geography of the assembly was thus that of an imperial East: Constantinople led, Alexandria and Antioch were directly concerned, Jerusalem took part, Rome was present through the conflictual absence of its pope.^[18]

This configuration explains why the article of faith was solid but reception slow. The East obtained an anti-Nestorian clarification. The West had to be convinced that this clarification did not destroy Chalcedon.

A consubstantial Trinity

The canons of 553 begin with a Trinitarian confession. The first anathema condemns whoever does not confess "one nature or substance of the Father, the Son and the Holy Spirit" and "a consubstantial Trinity". The council thus dealt not only with a quarrel of authors: it reinscribed Christology within the Trinitarian confession of Nicaea and Constantinople I.^[19]

“One consubstantial Trinity, one Godhead worshipped in three hypostases or persons.” — Constantinople II, canon 1, Denzinger §421^[20]

Two generations of the Word

The second anathema confesses the two generations of the Word: eternal generation from the Father before all ages, temporal birth from Mary in the last days. This articulation protects at once the eternal divinity of the Son and the reality of the Incarnation.^[21]

The Mariological consequence is clear. Mary is not called Mother of God by verbal honor or mere transfer. She is properly and truly Mother of God, because the one she bore according to the flesh is the incarnate eternal Word.^[22]

“The holy, glorious, ever-virgin Mary is Mother of God.” — Constantinople II, canon 6, Denzinger §427^[23]

Union according to the hypostasis

The doctrinal heart of the council is the expression union according to the hypostasis. The Word is not united to a man as to another subject; He assumes flesh animated by a rational soul. There are therefore not two Christs, nor two Sons, nor two adorations.^[24]

Constantinople II corrects two opposite errors. Against Nestorius and Theodore, it refuses the division of Christ into two subjects. Against Eutyches and confused Monophysite readings, it refuses the fusion of the natures. The formula is precise: one Christ, God and man, consubstantial with the Father according to divinity and consubstantial with us according to humanity.^[25]

“The Church of God rejects those who divide the mystery of Christ and those who introduce confusion into it.” — Constantinople II, canon 8, Denzinger §430^[26]

One adoration of Christ

The ninth anathema refuses the idea of two adorations: one for the Word, one for the man. Christian adoration is directed to the incarnate God the Word with His own flesh. Christ's flesh is not a separate person; it belongs personally to the Word.^[27]

This precision has a liturgical bearing. When the Church adores the crucified, risen Christ, present in the Eucharist, she does not adore an isolated humanity; she adores the eternal Son made man. The council thus protects Christian prayer as much as dogmatic vocabulary.

The first eleven anathemas

The first eleven anathemas fix the general doctrine: consubstantial Trinity, two generations of the Word, personal unity of Christ, hypostatic union, truth of the title Theotokos, correct interpretation of "in two natures", one adoration and confession of the Crucified as "true God" and "one of the Holy Trinity".^[28]

The last three anathemas

Canons 12 to 14 directly target the Three Chapters. Canon 12 condemns the defense of Theodore of Mopsuestia and his writings; canon 13 condemns Theodoret's writings against Ephesus, Saint Cyril and his twelve anathemas; canon 14 condemns the defense of the letter attributed to Ibas to Maris.^[29]

The decisive point is that the council does not condemn Chalcedon. It condemns a reading of Chalcedon that would claim to justify texts hostile to Ephesus or favorable to Nestorius. That is why the final document declares it has received the statements of Scripture, the Fathers and the four preceding councils before condemning those who defend the Three Chapters.^[30]

What about Origen?

The Origen dossier is the most delicate historically. The eleventh anathema of Constantinople II mentions Origen alongside Arius, Nestorius and Eutyches among the heretics to be anathematized.^[31] New Advent also transmits a series of anathemas against Origenist theses, notably the pre-existence of souls and a final restoration understood as the necessary return of all creatures.^[32]

Historians nonetheless discuss the exact status of these anti-Origenist anathemas in the preserved conciliar acts. The Catholic Encyclopedia notes that the question is disputed, notably because the original Greek acts are lost and their textual tradition encountered difficulties.^[33] For this article, the safe formulation is therefore this: Constantinople II receives an anti-Origenist tradition and its canon 11 names Origen, but the exact place of the fifteen anti-Origenist anathemas in the conciliar dossier remains debated.

A painful Roman reception

Reception by Rome passed through Vigilius. First absent and opposed to the imperial method, he ended by confirming the condemnation of the Three Chapters after the council. The Catholic Encyclopedia stresses one important point: his opposition bore not first on the doctrine itself, but on expediency, imperial violence and the fear of harming the authority of Chalcedon.^[34]

This distinction is essential. Vigilius is not presented as a defender of Nestorianism. He feared the West would interpret the condemnation as capitulation to the adversaries of Chalcedon. Once convinced that Chalcedon was not abolished, he ratified the condemnation.

The schisms of Aquileia and Milan

The crisis did not end in 554. In northern Italy, the ecclesiastical provinces of Milan and Aquileia broke communion with Rome over the pontifical ratification. Milan returned toward the end of the sixth century; Aquileia-Grado prolonged its resistance until around 700.^[35]

This slow reception shows that the ecumenicity of a council cannot be reduced to its immediate atmosphere. Constantinople II is recognized as the fifth ecumenical council, but time was needed for its condemnation to be understood as a defense of Chalcedon, not a betrayal of Chalcedon.

A key for reading Chalcedon

Constantinople II is the council that prevents two caricatures of Chalcedon. It forbids reading "two natures" as if there were two subjects in Christ. It also forbids defending Christ's unity by absorbing His humanity into His divinity. The Catholic faith holds both truths: real distinction of the natures, personal unity of the incarnate Son.^[36]

This balance remains fundamental for Christology. Without it, one ends either with a divided Christ, morally united to God, or with a Christ whose humanity is no longer fully human. In both cases, salvation is at stake: if the Word does not truly assume our humanity, He does not heal it; if the man Jesus is not personally the Word, Christian adoration becomes impossible.

A Mariological clarification

Canon 6 is also a Mariological landmark. It confesses Mary as Mother of God "properly and truly", not as a mere manner of speaking. This is not first an isolated privilege of Mary: it follows from the identity of her Son. The one born of her according to the flesh is the eternal Word.^[37]

Constantinople II thus extends Ephesus: the title Theotokos is not a late devotional formula, but a Christological safeguard. To refuse this title in its proper sense amounts to introducing a separation between the Word and the man born of Mary.

A warning about religious politics

Finally, Constantinople II remains a historical warning. The council rendered a doctrinal clarification received by the Church; but the imperial manner of imposing the case provoked violence, mistrust and schisms. Dogmatic truth is not abolished by the political weaknesses of its context, but its reception can be gravely wounded by coercion.

This lesson explains why this article must hold two judgments together. Theologically, Constantinople II is an ecumenical council necessary to clarify Chalcedon. Historically, it is one of the most difficult councils: it reveals the fragility of a Church in which the defense of the faith still passes through very heavy imperial mechanisms.

• Read first Nicaea I, Constantinople I, Ephesus and Chalcedon: Constantinople II presupposes these four councils.
• Remember the key formula: one Christ, two natures, one person.
• Do not confuse the Three Chapters with three condemned doctrines: they designate three files of authors or texts.
• Understand the Vigilius crisis as a crisis of reception and authority, not as a papal defense of Nestorianism.