He was born in Antioch in the year 347, his father's name being Secundus and his mother's Anthusa. Studying Greek philosophy, John became disgusted with Hellenic paganism and turned to the Christian faith as the one and all-embracing truth. John was baptised by Meletius, Patriarch of Antioch, and, after that, his parents were also baptised. After their death, John became a monk and began to live in strict asceticism. He wrote a book: "On the Priesthood", after which the holy Apostles John and Peter appeared to him, prophesying for him great service, great grace and also great suffering. When the time came for him to be ordained priest, an angel of God appeared at the same time to Patriarch Flavian (Meletius' successor) and to John himself. When the Patriarch ordained him, a shining white dove was seen above John"s head. Renowned for his wisdom, his asceticism and the power of his words, John was, at the desire of Emperor Arcadius, chosen as Patriarch of Constantinople. He governed the Church for six years as Patriarch with unequalled zeal and wisdom, sending missionaries to the pagan Celts and Scythians and purging the Church of simony, deposing many bishops who were given to this vice. He extended the Church"s charitable works, wrote a rite for the Holy Liturgy, put heretics to shame, denounced the Empress Eudoxia, interpreted the Scriptures with his golden mind and tongue and left to the Church many precious books of sermons.