Career
Originally from the Maldive Islands in the Indian Ocean, he came to the court of Constantine I as a young man and was ordained a deacon under the Arian bishop Eusebius of Nicomedia. He was eventually exiled because Constantius believed him to be a supporter of Constantius"s rebellious cousin Gallus. Famed for his ability as a healer, Theophilus was later recalled to court to heal Constantius"s wife, the empress Eusebia, which he is reputed to have done successfully.
Around 354 AD, Emperor Constantius II sent the Arian Theophilus on mission to south Asia via Arabia where he is said to have converted the Himyarites and built three churches in southwest Arabia.