St. Damasus

Damasus was a Spaniard of great eminence and learned in the Sacred Scriptures. He called the first Council of Constantinople, in which he abolished the evil heresy of Eunomius and Macedonius. He repeated the condemnation, already pronounced by Liberius, of the Council of Rimini. A proclamation of that council, chiefly due, as writhed by St. Jerome, to the intrigues of Valens and Ursacius, had condemned the faith of Nicaea. Damasus built two basilicas: one dedicated to St. Lawrence near the theatre of Pompey, the other on the Ardeatine Way at the Catacombs. He decreed that, as was already the custom in many places, Psalms should be sung day and night in all churches by alternate choirs, and that at the end of each Psalm should be repeated the words: "Glory be to the Father, and to the Son, and to the Holy Ghost." It was at his command that St. Jerome revised the translation of the New Testament to make it faithful to the Greek text. He discovered many bodies of holy Martyrs and celebrated their memory in verses. When he was nearly eighty years old and famous for his virtue, learning and prudence, he fell asleep in the Lord, during the reign of Theodosius the Great. 

Gregem tuum, Pastor ætérne, placátus inténde: et per beátum Dámasum Summum Pontíficem perpétua protectióne custódi; quem totíus Ecclésiæ præstitísti esse pastórem.
Per Dóminum

Look forgivingly on thy flock, Eternal Shepherd, and keep it in thy constant protection, by the intercession of blessed Damasus thy Sovereign Pontiff, whom thou didst constitute Shepherd of the whole Church. Through our Lord Jesus Christ