Jun. 27 Saturday of the Twelfth Week in Ordinary Time; Opt Mem of St. Cyril of Alexandria, Bishop and Doctor of the Church, Opt. Mem.
Today is the Optional Memorial of St. Cyril, Patriarch of Alexandria (376-444). Cyril was one of the metropolitan sees of the Christian Church in the east, was one of the great defenders of the faith against the heresy of Nestorius who denied the oneness of person in Jesus Christ. At the Council of Ephesus in 431, over which he presided in the pope's name, and at his instigation, it was defined that Christ, the Son of God, is at the same time God and man, and the Blessed Virgin Mary, His mother, is truly Theotokos, the Mother of God. St. Cyril died in 444. The Church venerates him as one of her great doctors. His commentary on the Gospel of St. John is one of the richest doctrinally of those left us by the Fathers of the Church.