The holy brothers left their pagan parents and went to Alexandrian Caesarea, where they found an instructor, Saint Pamphilius (February 16), and under his guidance they became accomplished in the spiritual life, spending their time in prayer and the study of sacred books.
By decree of the emperor Maximian (305-313), a zealous pagan and cruel persecutor of Christians, all the inhabitants of Caesarea were required to offer public sacrifice. Many Christians, including Saints Amphianus and Edesius, had to hide in order to avoid sacrificing to idols.
By order of the governor, soldiers seized Saint Amphianus, fiercely beat him and then threw him in prison. Two days later they led him to trial, where they beat him with iron rods and burned his body with bundles of flax soaked in oil.
The brave youth, steadfastly confessing his faith in Christ, was then thrown into the sea with a stone about his neck. Suddenly a storm arose, and the waves carried the martyr’s body to shore, where it was buried by Christians.