See this online ebook:
- On the Perpetual Virginity of Blessed Mary: Against Helvidius, by Saint Jerome, translated by W. H. Fremantle, with the assistance of the Rev. G. Lewis and the Rev. W. G. Martley; in The Early Church Fathers and Other Works (Edinburgh, Scotland, Wm. B. Eerdmans Pub. Co., 1867); and in Nicene and Post-Nicene Fathers, edited by Philip Schaff and Henry Wace, Series II, Vol. VI (Buffalo, NY: Christian Literature Publishing Co., 1893.). The text without footnotes may be read online on this page of the EWTN Library (containing a correction of the digital version by the Electronic Bible Society), on this page of New Advent (revised and edited for New Advent by Kevin Knight), and on this page of the Catholic Information Network (copyright 1996 by James Akin). The text with footnotes may be read online at Wikisource, IntraText, and CCEL.
“And the Lord said to me: This gate shall be shut: it shall not be opened, and no man shall pass through it: because the Lord, the God of Israel, hath entered in by it, and it shall be shut.” (Ezechiel xliv, 2)
“We believe in one God, the Father almighty, maker of all things, both visible and invisible; and in one Lord Jesus Christ, the Son of God… who for us men and for our salvation came down and took flesh, that is, was born perfectly of the holy ever-virgin Mary by the Holy Spirit” (Saint Epiphanius of Salamis, AD 374)