Synod of Constantinople
The Synod of Constantinople was a regional church assembly in the summer of 382 , that is, the year after the First Council of Constantinople , with which it should not be confused. The synod was accordingly completely under the impression of that second ecumenical council, which brought the victory of the orthodox-Trinitarian doctrine over Arianism in the so-called Arian dispute . Emperor Theodosius I , who also convened the Synod of Constantinople and who, in contrast to some previous Arian emperors, adhered to the Trinitarian doctrine , also played a decisive role in the success of the Trinitarians . Some resolutions, such as the Nicene-Constantinople Creed and Canons 5 and 6, are often attributed to the Council of 381, but may not actually have been passed until the Synod of 382.
The letter of invitation to the Roman bishop Damasus I has been preserved , in which reference is made to the persecution of the Trinitarian doctrine by the Arians and to the doctrine of the Trinity with its three perfect hypostases, Father, Son and Holy Spirit , decided in the Council of 381 . In addition, it is noted with satisfaction that now the apostolic chairs in Constantinople, Alexandria, Antioch and Jerusalem are again in the hands of the "orthodox". Damasus, meanwhile, at the synod held in Rome in the same year ( Synod of Rome (382) ) reaffirmed his claim to primacy over the other patriarchs.