The First Council of Constantinople (381), also known as the Second Ecumenical Council and I Constantinople was a gathering of 150 mostly Eastern bishops summoned by Emperor Theodosius I to confirm his earlier decree in support of the doctrine of the Council of Nicaea, which had fallen out of favor under the reigns of his predecessors. The council dealt a death blow to the formerly popular form of Christianity known as Arianism and basically settled the trinitarian controversy that had divided the empire since the time of Constantine the Great.
Although the council represented the triumph of Nicene orthodoxy over Arianism with regard to the doctrine of the Trinity, it did not in fact create theological unity; and soon new issues surfaced, particularly over the question of Christology. I Constantinople is recognized as a legitimate ecumenical council by Assyrian Church of the East, the Oriental Orthodox, the Eastern Orthodox, the Roman Catholics, the Old Catholics, and a number of other Western Christian groups. However, the Catholics and other Western churches accepted only its doctrinal decrees and not as administrative rules, especially its recognition of Constantinople as the "New Rome."
The council met in the church of Hagia Irene from May to July 381. It may have held a second session in the following year. The formal records of its proceedings have been lost, but its activities known from various letters and the writings of the church historians Socrates, Sozomen, and Theodoret.
The Council of Nicaea, called by Emperor Constantine I to deal with the Arian controversy and clarify the definition of the Trinity, by no means settled the issue. By 327, it had become clear that the formula adopted at Nicaea had not created the unity which the emperor had hoped to achieve.
The primary theological issue at stake dealt with the question of Christ's relation to God the Father before the Incarnation. Many bishops had refused to accept the Nicene term homoousios, usually translated as "same substance," to describe the relationship between the Son and the Father, a term which Constantine himself had endorsed. Moreover, anti-Arian churchmen such as the contentious and energetic Athanasius of Alexandria had used the theological issue to gain political advantage and intrude themselves into the theological affairs in distant lands, while Arian bishops had been cast out of their churches, much to the dismay of their parishioners. Under the influence of Eusebius of Nicomedia, the bishop of Constantinople, Constantine granted amnesty to the Arian leaders and exiled Athanasius. The former Alexandrian bishop, however, continued to be a vigorous defender of Nicene Christianity, gaining the support of Rome and several other key churches, and was later reinstalled.
The vacillations of imperial politics resulted in nearly continual ecclesiastical tumult. The greater number of the Eastern bishops were not Arians but agreed to the deposition of Athanasius, whom they viewed as inflexible, divisive, and unforgiving toward his adversaries. To accommodate a broader group under the umbrella of "orthodoxy," a council at Antioch in 341 omitted the contentious phrase "of one substance" from its creed, enabling a number of former Arians to endorse it in good conscience. Meanwhile a large number of new converts had been made among the Goths through the missionary work of the saintly Ulfilas, a disciple of Eusebius of Nicomedia who leaned heavily toward Arianism.
Emperor Constantius II now sought to unite Christendom by a less stringent creed. Athanasius was once again banished from Alexandria, and bishops who refused to denounce him found themselves persecuted. Even the bishop of Rome, Pope Liberius, was deposed by the emperor, and many of the churchmen and nobility at Rome accepted the antipope Felix II as his successor. Constantius II's formula stressed the "likeness" of the Father and the Son and banned both the Arian and Nicene terminology dealing with the question of "ousia" (substance/being). Opponents of this policy characterized it and similar non-Nicene formulas as "Semi-Arianism."
Though now on the defensive, Nicaea still had courageous and eloquent supporters. The papacy, with the exception of Felix II, was relatively consistent in its support of the Nicene faith. The Cappadocian Fathers took up the torch on behalf of the Nicene formula in Asia Minor, while bishops such as Hilary of Poitiers did the same in the West.
Up until about 360, theological debates mainly dealt with defining the Divinity of Jesus. However, because the Council of Nicaea had not clarified the issue of the Holy Spirit as the third person of the Trinity, this now became a major topic of debate. The Macedonians—also called the Pneumatomachians—emerged as a target of the Nicene faction because of doctrine of the Holy Spirit, which was seen as a Semi-Arian position, although Nicaea itself had not dealt with this issue.
The controversy ebbed and flowed as new emperors came to power, and it would not be until Theodosius I ascended the imperial throne in 378 that the pro-Nicene party found a reliable imperial ally. On February 27, 380 Theodosius published an edict ordering that all of his subjects must profess the faith "of the bishops of Rome and Alexandria," namely the Nicene Creed.
On November 26, Theodosius expelled Patriarch Demophilus of Constantinople after he refused to affirm the Creed and appointed the staunchly pro-Nicene Cappadocian Gregory of Nazianzus in his place. In May 381, he summoned a new major council at Constantinople to have the churches confirm what he had already decreed.
The council gathered 150 Eastern bishops, only a few of whom were pro-Arian. Catholic sources indicate that Pope Damasus I also sent delegates, although it is not clear whether these were invited as voting participants. Presiding over the council in succession were Timothy of Alexandria, Meletius of Antioch, Gregory Nazianzus, and Nectarius of Constantinople. Reversing several previous councils that had supported various formula designed to accommodate semi-Arian beliefs, the council affirmed the original Nicene Creed as the true and accurate explanation of Scripture. However, it put forth its own new creed, which is sometimes known as the Nicene Creed of 381, and is often recited today as the "Nicene Creed."
In addition to affirming what had been said earlier at Nicaea and condemning the various semi-Arian attitudes, the council also expanded the statement on the Holy Spirit to combat the "heresy" of the Pneumatomachi or Macedonians. This group had affirmed Nicaea's simple statement that "We believe in the Holy Ghost," but denied that the Holy Spirit constituted the eternally existing Third Person of the Trinity. The new creed defined the Holy Spirit as "the Lord, the Giver of Life, Who proceeds from the Father, With the Father and the Son he is worshiped and glorified." The statement regarding the Spirit's procession from the Father is particularly significant because it established that the Spirit, like the Son, must be of the same substance (ousia) as God the Father.
The council's decision regarding the Holy Spirit thus gave official endorsement to the concept of the Trinity as it came to be understood in mainstream Christian tradition. However, the statement would later become a major bone of contention between the Catholic and Orthodox churches when Rome added the phrase "and the Son"—the filioque clause—to indicate that the Holy Spirit proceeds both from the Father and the Son.
The council is also notable for its declaration of Constantinople as "New Rome," giving it a primacy of honor second only to the church of Roman itself. This and other non-doctrinal rules passed by the council were not universally accepted, even by important pro-Nicene bishops such as those of Rome, Antioch, and Alexandria. However, in negotiating the acceptance of the Council of Chalcedon in 451, Rome and its allies were forced to accept the ecumenicity of I Constantinople. The council dealt a major blow against Arianism, from which this movement never recovered.
|First Council of Constantinople|
|Accepted by||Roman Catholicism
Assyrian Church of the East
|Previous council||First Council of Nicaea|
|Next council||Council of Ephesus|
|Convoked by||Emperor Theodosius I|
|Presided by||Timothy of Alexandria, Meletius of Antioch, Gregory Nazianzus, and Nectarius of Constantinople|
|Attendance||150 (no representation of Western Church)|
|Topics of discussion||Arianism, Apollinarism, Sabellianism, Holy Spirit, successor to Meletius|
|Documents and statements||Nicene Creed of 381, seven canons (three disputed)|
|Chronological list of Ecumenical councils|
Seven canons, four of these doctrinal and three disciplinary, are attributed to the Council and accepted by both the Eastern Orthodox Church and the Oriental Orthodox Churches. The Roman Catholic Church, however, accepts only the doctrinal statements:
|First Council of Nicaea (325)||First Council of Constantinople (381)|
|We believe in one God, the Father Almighty, Maker of all things visible and invisible.||We believe in one God, the Father Almighty, Maker of heaven and earth, and of all things visible and invisible.|
|And in one Lord Jesus Christ, the Son of God, begotten of the Father [the only-begotten; that is, of the essence of the Father, God of God], Light of Light, very God of very God, begotten, not made, being of one substance with the Father;||And in one Lord Jesus Christ, the only-begotten Son of God, begotten of the Father before all worlds (æons), Light of Light, very God of very God, begotten, not made, being of one substance with the Father;|
|by whom all things were made [both in heaven and on earth];||by whom all things were made;|
|who for us men, and for our salvation, came down and was incarnate and was made man;||who for us men, and for our salvation, came down from heaven, and was incarnate by the Holy Ghost of the Virgin Mary, and was made man;|
|he suffered, and the third day he rose again, ascended into heaven;||he was crucified for us under Pontius Pilate, and suffered, and was buried, and the third day he rose again, according to the Scriptures, and ascended into heaven, and sitteth on the right hand of the Father;|
|from thence he shall come to judge the quick and the dead.||from thence he shall come again, with glory, to judge the quick and the dead;|
|whose kingdom shall have no end.|
|And in the Holy Ghost.||And in the Holy Ghost, the Lord and Giver of life, who proceedeth from the Father, who with the Father and the Son together is worshiped and glorified, who spake by the prophets. In one holy catholic and apostolic Church; we acknowledge one baptism for the remission of sins; we look for the resurrection of the dead, and the life of the world to come. Amen.|
|[But those who say: 'There was a time when he was not;' and 'He was not before he was made;' and 'He was made out of nothing,' or 'He is of another substance' or 'essence,' or 'The Son of God is created,' or 'changeable,' or 'alterable'—they are condemned by the holy catholic and apostolic Church.]|
The First Council of Constantinople succeeded where the Council of Nicaea had failed in sounding the death knell of Arianism. Its success, however, was not due so much to having achieved a true consensus among the brethren, for many Arian and Semi-Arian Christians remained unconvinced of the correctness of the "orthodox" version of the doctrine of the Trinity, and many others, though orthodox themselves, supported the previous policy of tolerating those with privately-held Arian views. Theodosius I must be largely credited for calling the council, determining its leadership, and enforcing its major decrees. At the close of this council Theodosius declared that Arian pastors should be put out of their churches and replaced by those affirming the new trinitarian formula determined at Constantinople.
I Constantinople continued the unfortunate trend of imperial leadership in Christian religious affairs and established a unity of church and state which led inevitably toward intolerance and the politicization of religious issues. Although Arianism would soon become a dead issue politically, new doctrinal controversies would soon arise to divide the most powerful bishops, and the empire would again be torn by Christian factions arguing not so much about the Trinity itself as about the question of Christology. Movements such as Nestorianism, Monophysitism, and Monothelitism soon would move to the fore, and the christological controversy would be the topic of the Council of Ephesus of 431 and the Council of Chalcedon of 451.
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