The Perpetual Virginity of Blessed Mary
Against Helvidius, about 383
1 h · Age of the Councils · Latin West
The treatise that settled the question in the West: that the brethren of the Lord are His kinsmen, that the Mother of God remained ever-virgin, and that Joseph was her guardian and not her husband in fact. Sharp in tone, as Jerome usually is, and its conclusion is what the Church confesses.