In view of God’s choice and Mary’s fiat to be the mother of the Incarnate Christ, Mary herself was conceived full of grace and preserved from Original Sin. In her virginal womb, she literally carried the Hope of Israel and the Kingdom of God. (“The Unborn Christ” is an illustration by Gary Cangemi.)
This Saturday is the Solemnity of the Immaculate Conception of the Blessed Virgin Mary. An updated doctrinal homily outline can be found here.
For the Second Sunday of Advent, an outline that focuses on the Kingdom of God is here. An outline that focuses on the virtue of hope is here.