Gregory of Nazianzus
Basil, together with his brother Gregory of Nyssa and his friend Gregory of Nazianzus, are collectively referred to as the Cappadocian Fathers. The Eastern Orthodox Church and Eastern Catholic Churches have given him, together with Gregory of Nazianzus and John Chrysostom, the title of Great Hierarch. He is recognized as a Doctor of the Church in the Roman Catholic Church. He is sometimes referred to by the epithet "Ouranophantor" (Greek: ), "revealer of heavenly mysteries".