Western Saints
Augustine of Hippo
Listen now to a deep mystery. Rahab is there through Him, through whom also is Babylon, now no longer Babylon, but beginning to be Jerusalem. The daughter is divided against her mother, and will be among the members of that queen to whom is said, "Forget your own people, and your father's house, so shall the king have pleasure in your beauty." For how could Babylon aspire to Jerusalem? How could Rahab reach those foundations? How could the Philistines, or Tyre, or the people of the Ethiopians? …
Exposition on Psalm 87 ↗
Jerome
Will a man say to Zion, and a man is born in her? The Seventy translators rendered it thus: Will a man say to Zion? Many, then, expected, and did not understand what μήτη Σιὼν is: and they added a ρ, and they read μήτηρ Σιὼν ἐρεῖ ἄνθρωπος (mother Zion will a man say). And they say this because there follows, And a man is born in her: they expect that it also ought to be said in this way, Mother Zion will a man say. …
Homily 18, on Psalm 86 ↗
Bonaventure
The Church had to be founded: therefore it was necessary to lay the foundations, namely the commandments of God, and it was necessary that they be placed in some person. This could not be except in the glorious Virgin; as the Psalm says: "His foundations are in the holy mountains: a man is born in her, and the Most High himself has founded her."
Collationes de Septem Donis, Collation 6 ↗