We give a quick overview of the general series of questions which are discussed in the "Treatise on the Incarnation" - why it is that the Second Person of the Trinity became Man and whether it could have been otherwise, as well as the humanity of the Savior.
We then look more carefully at the conception of Christ and the perfection of the Child conceived.
New Advent has the Summa online https://www.newadvent.org/summa/ [here]!
The Third Part of the Summa is online https://www.newadvent.org/summa/4.htm [here]!
ST III, q.3 discusses why God the Son became Man https://www.newadvent.org/summa/4003.htm [here]!
ST III, q.30 discusses the Annunciation https://www.newadvent.org/summa/4030.htm [here]!
ST III, q. 34 discuss the perfection of Jesus in the moment he was conceived https://www.newadvent.org/summa/4034.htm [here]!
Listen online [here]!
