The holy Apostle was, by the world's reckoning, the nephew of our Savior, since his mother Salome was the daughter of St Joseph the Betrothed. Called 'the beloved disciple,' St John was the only one of Christ's disciples to follow Him to the Cross. He was entrusted by the Savior with the care of the most holy Theotokos, and became like another son to her, providing for her care until the day of her repose. He preached the Gospel of Christ throughout Asia Minor, especially in Ephesus. During the persecutions of the Emperor Domitian, he was taken in bonds to Rome, where he was subjected to various tortures; but when he emerged from these miraculously unharmed, he was exiled to the island of Patmos, where he wrote the book of Revelation. After the death of Domitian, he returned to Ephesus and there wrote his Gospel and Epistles. He reposed in peace at a great old age. When his disciples later opened his grave, they found that his body was not there. He is called the Theologian because of the sublimity of theological expression in his New Testament writings.