Eustathius of Sebaste

Eustathius of Sebaste (also: Eustatius, Eustathius of Sebaste hellenized; † after 377 ) was a late antique bishop of Sebaste in Armenia.

Eustathius was a son of the Bishop of Sebaste Eulalios. In Egypt, he became a disciple of Arius, on the back is the doctrine of Arianism. This earned him first problems when the Bishop Eustathius of Antioch refused him admission to the clergy. Since about 355 he held the bishopric in Sebaste. During the Arian disputes, he belonged to the group of the Arians fighting Homoousianer who defended the consubstantiality of God with Jesus Christ. The most important pupil of Basil of Caesarea was Eusthatius, with whom he has long been a close friend.

Eustathius operated not as Bibelexeget or church theorists and devoted himself instead of promoting monasticism in Armenia. He was so successful that the effect of his teachings reached as far as Paphlagonia and Pontus. To 340 the Synod of Gangra in Paphlagonia denounced the contempt of marriage and property with the monks and 358 continued the Synod of Melitene (Malatya ) in Lesser Armenia from Eustathius. Up to 373 Eustathius was the mastermind of Asia Minor Pneumatomachi ( " fighters against the [ Holy ] Spirit " ) to which the friendship with Basil broke. After the mediation, which had been taken at the Council of Constantinople in 381 Opel, was rejected in a so-called religious conversation, Theodosius I banned the 383 Pneumatomachi each additional gathering.

His followers, a group of radical ascetics are called Eustathians.