St. Cyril of Alexandria
Commemorated June 9
Troparion of St. Cyril of Alexandria, Tone 1
With all reverence let us praise the light of the world, the great orator and champion of the Mother of God; for by his fiery teachings he burned the heresy of Nestorius. Wherefore let us cry to him: O divine Cyril, intercede with Christ to strengthen the Orthodox faith.