This will be a brief overview of the First Ecumenical Council of Constantinople. There is much information on this, but I will keep this brief.
The council approved the current form of the Nicene Creed as used in the Eastern Orthodox Church and Oriental Orthodox churches, but, except when Greek is used, with two additional Latin phrases ("Deum de Deo" and "Filioque") in the West. The form used by the Armenian Apostolic Church, which is part of Oriental Orthodoxy, has many more additions. This fuller creed may have existed before the Council and probably originated from the baptismal creed of Constantinople.
The council also condemned Apollinarism, the teaching that there was no human mind or soul in Christ. It also granted Constantinople honorary precedence over all churches save Rome.
The council did not include Western bishops or Roman legates, but it was accepted as ecumenical in the West
The First Council of Constantinople is recognized as the Second Ecumenical Council by the 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. This being the first Ecumenical Council held in Constantinople, it was called by Theodosius I in 381 which confirmed the Nicene Creed and dealt with other matters such as Arian Controversy. The council tk place in the church of Hagia Irene from May to July 381.
The council affirmed the original Nicene creed of faith as true and an accurate explanation of Scripture. This council also developed a statement of faith which included the language of Nicaea, but expanded the discussion on the Holy Spirit to combat the heresy of the Pneumatomachi. It is called the Nicene Creed of 381 and was a commentary on the original Nicene formula. It expanded the third article of the creed dealing with the Holy Spirit, as well as some other changes. About the Holy Spirit the article of faith said he is "the Lord, the Giver of Life, Who proceeds from the Father, With the Father and the Son he is worshipped and glorified". The statement of proceeding from the Father is seen as significant because it established that the Holy Spirit must be of the same being (ousia) as God the Father.
This Council's decision regarding the Holy Spirit also gave official endorsement to the concept of the Trinity. By the end of the 4th century, the Byzantine Emperor Theodosius "issued a decree that the doctrine of the Trinity was to be the official state religion and that all subjects shall adhere to it"
This council condemned Arianism which began to die out with more condemnations at a council of Aquileia by Ambrose of Milan in 381. With the discussion of Trinitarian doctrine now developed and well under agreement to orthodox and biblical understanding, it led to Christology, which would be the topic of the Council of Ephesus of 431 and the Council of Chalcedon of 451.
The council approved the current form of the Nicene Creed as used in the Eastern Orthodox Church and Oriental Orthodox churches, but, except when Greek is used, with two additional Latin phrases ("Deum de Deo" and "Filioque") in the West. The form used by the Armenian Apostolic Church, which is part of Oriental Orthodoxy, has many more additions. This fuller creed may have existed before the Council and probably originated from the baptismal creed of Constantinople.
The council also condemned Apollinarism, the teaching that there was no human mind or soul in Christ. It also granted Constantinople honorary precedence over all churches save Rome.
The council did not include Western bishops or Roman legates, but it was accepted as ecumenical in the West
The First Council of Constantinople is recognized as the Second Ecumenical Council by the 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. This being the first Ecumenical Council held in Constantinople, it was called by Theodosius I in 381 which confirmed the Nicene Creed and dealt with other matters such as Arian Controversy. The council tk place in the church of Hagia Irene from May to July 381.
The council affirmed the original Nicene creed of faith as true and an accurate explanation of Scripture. This council also developed a statement of faith which included the language of Nicaea, but expanded the discussion on the Holy Spirit to combat the heresy of the Pneumatomachi. It is called the Nicene Creed of 381 and was a commentary on the original Nicene formula. It expanded the third article of the creed dealing with the Holy Spirit, as well as some other changes. About the Holy Spirit the article of faith said he is "the Lord, the Giver of Life, Who proceeds from the Father, With the Father and the Son he is worshipped and glorified". The statement of proceeding from the Father is seen as significant because it established that the Holy Spirit must be of the same being (ousia) as God the Father.
This Council's decision regarding the Holy Spirit also gave official endorsement to the concept of the Trinity. By the end of the 4th century, the Byzantine Emperor Theodosius "issued a decree that the doctrine of the Trinity was to be the official state religion and that all subjects shall adhere to it"
This council condemned Arianism which began to die out with more condemnations at a council of Aquileia by Ambrose of Milan in 381. With the discussion of Trinitarian doctrine now developed and well under agreement to orthodox and biblical understanding, it led to Christology, which would be the topic of the Council of Ephesus of 431 and the Council of Chalcedon of 451.
