The Order of a Birth

Hinc est, fratres, hinc est, quod Christi talis est ordo nascentis: ad virginem diabolus venerat, venit angelus ad Mariam, ut quod malus dejecerat angelus, bonus angelus allevaret. Perfidiam suasit ille, hic fidem: suasori credidit illa, ista credit auctori. Nascitur Christus, ut nascendo corruptam redintegret naturam; infantiam suscepit ille, patitur nutrimenta, percurrit aetates, ut unam perfectam, manentem, quam ipse fecerat, instauret aetatem: portat hominem, ne jam cadere homo possit; quem terrenum feceret, fecit esse coelestem; animatum humano spiritu, spiritum vivificat in divinum: et sic eum totum tollit in Deum, ut in eo quod peccati, quod mortis, quod laboris, quod doloris, quod terrae est, nil relinquat. Sanctus Petrus Chrysologus, Sermo CXLIIX

Hence, brothers, hence, such an order of events in the birth of Christ. To a virgin the devil came, to Mary an angel came, the evil angel to throw down, the good angel to lift up. The former persuaded treachery, the latter faith. The former believed the persuader, the latter her Creator. Christ is born that by being born he might restore our corrupted nature. He took up infancy, suffered to be nourished, he passed through his years, that he restore to one perfect abiding age that which He had made. He carries man that now he might not fall. He who had made him earthly made him heavenly. That animated by a human spirit, He enlivens with the Divine spirit, and so lifts up the whole to God, that what is of sin, what is of death, what is of toil, what is of grief, what is of the earth, be left behind. Saint Peter Chrysologus, Sermon 148