Saints Patermuthius and Copres: Patermuthius at first was a pagan and also the head of a band of robbers, but then he repented, was baptized and withdrew into the desert. The monk devoted all the rest of his life to attending the sick and burying the dead. For his love of toil and efforts, Patermuthius received from God the gift of wonderworking.
The priest Copres was an eyewitness of the doings of the venerable Patermuthius and recorded his life and miracles. Saint Copres narrated this Life to the presbyter Rufinus, who in turn transmitted it to Palladius, Bishop of Hellenopolis, who included the account in his book, the Lausiac History.
Once Saint Copres entered into a debate with the heretic Manicheus, and seeing that he could not prevail against him in dispute, he suggested that a large fire be lit, and that they should go into it together. In this way, the Lord Himself would decide whose was the true Faith. Manicheus refused to go in first, but Copres went into the fire, and standing in the midst of the flames, he remained unharmed. The people glorified the faith of Copres, and they threw the heretic into the fire. He jumped out all scorched and tried to flee, but they caught him and again cast him into the flames. Saint Copres then calmed the crowd and let Manicheus go.