Onesimus

Saint Onesimus (d. ca. 68 AD) (Greek: Ὀνήσιμος, Onēsimos, meaning "useful," also called Onesimus of Byzantium and The Holy Apostle Onesimus in some Eastern Orthodox churches) was a slave to Philemon of Colossae, a man of Christian faith. He may be the same Onesimus named by Ignatius of Antioch as Bishop in Ephesus.