In the Acts of the Apostles (6:1-6) it is said that the twelve Apostles chose seven men full of the Holy Spirit and wisdom, and appointed them to serve as deacons. St. Prochorus at first accompanied the holy Apostle Peter and was made by him bishop in the city of Nicomedia. After the Dormition of the Most Holy Theotokos, Prochorus was a companion and coworker of the holy Apostle John the Theologian and was banished to the island of Patmos together with him. There Apostle and Evangelist John wrote down the Book of Revelation concerning the final fate of the world. Upon returning to Nicomedia, St. Prochorus converted pagans to Christ in the city of Antioch and there he received a martyr's crown.