Quite appropriately for this time of year as we head towards Christmas the readings at Mass drawn on some of the great stories that point the significance of the mystery of the Incarnation. God coming to dwell among us and in particular for the Gospels.  We draw on Luke's Gospel because it has the most graphic rich and suggestive stories around the birth of Jesus and today, we have the annunciation, the only record of this extraordinary event in the gospels it's there in Luke's account because it points to the very thing that Luke trying to say all the time that this is God's initiative.