(Parentheses clarify the intended or contextual meaning.)
St. Jerome, Priest and Doctor.
I follow no one except Christ alone, and therefore, I want to remain in union in the Church with you, that is, with the chair (or office, Greek cathedras) of Peter. I know that on this rock the Church is founded.
St. Jerome, Letters, 15:2, quoted in Dogma 4: The Church, Michael Schumas (Westminster, Md.: Christian Classics, 1984), 184. Brief Biography: Born at Stridon in Dalmatia around the year 340, he studied the classical authors at Rome and was baptized there. He embraced a life of asceticism and went to the East where he was ordained a priest. Returning to Rome, he became secretary to Pope Damasus. At Rome he began to translate the holy Scriptures into Latin and to promote the monastic life. Eventually he settled in Bethlehem where he served the needs of the Church. he wrote many works, especially commentaries on holy Scripture. He died at Bethlehem in 420. His memorial is celebrated September 30th.
Material Credit:
The liturgy of the hours according to the Roman Rite, 1975.
The Compact History of the Catholic Church, Alan Schreck, International Catholic Carismatic Renewal Office, 1987.