There are only two places where the powerful and great in this world lose their courage, tremble in the depths of their souls, and become truly afraid. These are the manger and the cross of Jesus Christ....No priest, no theologian stood at the cradle of Bethlehem. And yet, all Christian theology finds its beginnings in the miracle of miracles, that God became human.
Dietrich Bonhoeffer, Jana Riess, O. C. Dean, Jr. (2010). “God Is in the Manger: Reflections on Advent and Christmas”