He was a disciple and friend of St John the Theologian, and worked with the Apostle Paul, and is himself named as an Apostle though he is not one of the Seventy. He travelled widely in the ministry of the Gospel of Christ, suffering many imprisonments and tortures. He died in Sebastia, the place of his birth. The Prologue says that he was beheaded, the Great Horologion that he reposed in peace "in deep old age."