The Lord had told Moses, "No one may see me and live." If sinners cannot even bear to look upon the glory of God, then they certainly could not hope to live with God in the glory of heaven. So, on that first Christmas, God chose to hide his glory under flesh. What child is this? It is God and man in one person, exactly what the human race needed to deliver it from its enemies of sin, death, and Satan. Christmas Day serves up the deep stuff of Christmas: the miracle and mystery of the incarnation.