Early Life and Renunciation
According to his life as recorded by the Orthodox Church in America, Eumenius was noted from the time of his youth for his virtuous manner of living. He sought to serve the one God and avoided worldly temptations.
Out of concern for the salvation of his soul, he distributed all of his substance to the poor, embracing voluntary poverty before his elevation to the episcopate.
Bishop of Gortyna
Eumenius was chosen as Bishop of Gortyna, an ancient see on the island of Crete. As bishop he was remembered for pastoral compassion, comforting his flock in their sorrows and caring for orphans and the indigent.
The synaxarion relates that his prayers were powerful before God: during a drought he is said to have called forth abundant rain upon the earth.
Defense of Orthodoxy and Exile
Eumenius actively opposed theological error, defending Orthodox doctrine against the Monophysite heresy. For this opposition he was banished to the Thebaid, a region of Upper Egypt.
He died there in the seventh century. His body was subsequently transferred and buried in Gortyna.
Sources and Attestation
Independent English-language attestation for Saint Eumenius is limited. As of this writing no English Wikipedia or OrthodoxWiki article was found for him, and the principal accessible account is the life published by the Orthodox Church in America, on which this profile chiefly rests.
The Orthodox Church in America commemorates him on September 18, where his name appears alongside other commemorations of that day, including the Martyr Ariadne of Phrygia.