Beloved, our Lord Jesus Christ, the eternal creator of all things, today became our Savior by being born of a mother. Of his own will he was born for us today, in time, so that he could lead us to his Father’s eternity. God became human like us so that we might become God.
We sinned and became guilty; God is born as one of us to free us from our guilt. We fell, but God descended; we fell miserably, but God descended mercifully; we fell through pride, God descended with his grace.
—Augustine, Sermon 13 on the Time