"That one woman is both mother and virgin, not in spirit only but even in body. In spirit she is mother, not of our head, who is our Savior himself-of whom all, even she herself, are rightly called children of the bridegroom-but plainly she is the mother of us who are his members, because by love she has cooperated so that the faithful, who are the members of that head, might be born in the Church. In body, indeed, she is the Mother of that very head."

Source: St Augustine, Saint Augustine of Hippo (2003). “Sermons 273-305”, p.21