Coming from Tarsus in Cilicia, Saint Diomedes was a pious and deeply faithful man. He was a physician who healed not only the bodies but also the souls of people, calling the Greeks to believe in the true God.
During the reign of the Emperor Diocletian, he left Tarsus and came to Nicaea, where he continued to heal the sick, preach the word of the Gospel, and convert pagans to Christianity.
When the emperor learned of his actions, he sent soldiers to arrest him. They executed him by beheading and immediately lost their sight. When they brought his head before the emperor, he ordered that it be placed back upon the saint’s body. At once, they regained their sight and believed in the power of the true God.
Saint Diomedes became a martyr in the late 3rd or early 4th century.
His memory is honored by the Church on August 16.
