Ezechiel 44:2

Blessed art thou, all-blessed, and to be desired of all. Blessed of the Lord is thy name, full of divine grace, and grateful exceedingly to God, mother of God, thou that givest light to the faithful. Thou art the circumscription, so to speak, of Him who cannot be circumscribed; the root of the most beautiful flower; the mother of the Creator; the nurse of the Nourisher; the circumference of Him who embraces all things; the upholder of Him who upholds all things by His word; the gate through which God appears in the flesh; the tongs of that cleansing coal; the bosom in small of that bosom which is all-containing; the fleece of wool, the mystery of which cannot be solved; the well of Bethlehem, that reservoir of life which David longed for, out of which the draught of immortality gushed forth; the mercy-seat from which God in human form was made known unto men; the spotless robe of Him who …

The words of the Prophets concerning Him, “A Virgin shall conceive and bring forth a Son,” are known to all, and are cited in the Gospels again and again. The Prophet Ezekiel too had predicted the miraculous manner of that birth, calling Mary figuratively “the Gate of the Lord,” the gate, namely, through which the Lord entered the world. For he saith, “The gate which looks towards the East shall be closed, and shall not be opened, and no one shall pass through it, because the Lord God of Israel shall pass through it, and it shall be closed.” What could be said with such evident reference to the inviolate preservation of the Virgin’s condition? That Gate of Virginity was closed; through it the Lord God of Israel entered; through it He came forth from the Virgin’s womb into this world; and the Virgin-state being preserved inviolate, the gate of the Virgin remained closed for ever. …

21. Christ Himself is a virgin; and His mother is also a virgin; yea, though she is His mother, she is a virgin still. For Jesus has entered in through the closed doors, and in His sepulchre, a new one hewn out of the hardest rock, no man is laid either before Him or after Him. Mary is “a garden enclosed…a fountain sealed,” and from that fountain flows, according to Joel, the river which waters the torrent bed either of cords or of thorns; of cords being those of the sins by which we were beforetime bound, the thorns those which choked the seed the goodman of the house had sown. She is the east gate, spoken of by the prophet Ezekiel, always shut and always shining, and either concealing or revealing the Holy of Holies; and through her “the Sun of Righteousness,” our “high priest after the order of Melchizedek,” goes in and out. …

Ps. lviii. 3 . Sinners are estranged from the womb; that is, either, as St. Paul says ( Rom. v. 14 ), they sin “after the similitude of Adam”; or, “when Christ, as the firstborn, opened the virgin’s womb” ( Exod. xiii. 2 ). The heretics refused to acknowledge the mystery, which was prefigured by the Eastern door of the Temple ( Ezek. xliv. 2 ), which closed again when once the High Priest had gone through it.

For He who was of the Father, yet without mother, was born of woman without a father’s co-operation. And so far as He was born of woman, His birth was in accordance with the laws of parturition, while so far as He had no father, His birth was above the nature of generation: and in that it was at the usual time (for He was born on the completion of the ninth month when the tenth was just beginning), His birth was in accordance with the laws of parturition, while in that it was painless it was above the laws of generation. For, as pleasure did not precede it, pain did not follow it, according to the prophet who says, Before she travailed, she brought forth, and again, before her pain came she was delivered of a man-child . …

Ambrose , that illustrious priest of God, who never leaving the Lord’s hand, ever shone like a jewel upon the finger of God, thus speaks in his book to the Virgins: “My brother is white and ruddy. White because He is the glory of the Father: ruddy because He was born of the Virgin. But remember that in Him the tokens of Divinity are of longer standing than the mysteries of the body. For He did not begin to exist from the Virgin, but He who was already in existence, came into the Virgin.” Again on Christmas Day: “See the miracle of the mother of the Lord: A Virgin conceived, a Virgin brought forth. She was a Virgin when she conceived, a Virgin when with child, a Virgin after the birth. …