Nicene and Post-Nicene Fathers, Ser. II, Vol. III:
The Ecclesiastical History, Dialogues, and Letters of Theodoret.: To Flavianus Bishop of Constantinople.

p. 253 XI. To Flavianus Bishop of Constantinople.

The Creator and Guide of the Universe has made you a luminary of the world, and changed the deep moonless night into clear noon. Just as by the haven’s side, the beacon light shews sailors in the night time the harbour mouth, so shines the bright ray of your holiness to give great comfort to all that are attacked for true religion’s sake, and shews them the safe port of the Apostles’ faith. They that know it already are filled with comfort, and they that knew it not are saved from being dashed upon the rocks. I indeed am especially bound to praise the giver of all good, because I have found a noble champion who drives away fear of men by the power of the fear of God, fights heartily in the front rank for the doctrines of the Gospel, and gladly bears the brunt of the apostolic war. So to-day every tongue is moved in eulogy of your holiness, for it is not only the nurslings of true religion who admire the purity of your faith, but the praises of your courage are sung even by the enemies of the truth. Falsehood vanishes at truth’s lightning flash.

I write thus knowing that the very reverend and pious Hypatius the reader, both readily obeys the bidding of your holiness, and constantly, my Lord, mentions your laudable deeds. I salute you as holy and right dear to God. I exhort you to support us with your prayers that we may lead the rest of our lives according to God’s laws.