“Come then, O Eve, who now are called Mary; you not only received an incentive to virginity but also gave us God.”Ambrose of Milan, De institutione virginis 33; PL 16, 328.
Many church fathers contrasted Eve with Mary; here, St. Ambrose uses them as parallel. Virgin Mary is the new Eve, that is the Mother of God.
Gambero, L., 1999. Mary and the Fathers of the Church 1st ed. Translated by Buffer, T., San Francisco: Ignatius Press.