We wish each other a merry Christmas, a joyful Christmas, a peaceful Christmas. But a disruptive Christmas? That might be the last thing we need this December. And yet, whenever God shows up in our world and in our lives, that’s exactly what it is: disruptive. His arrival upends everything. Today we celebrate the birth of Jesus by pondering the mystery and miracle of the incarnation. At Christmas, God’s Son ended the separation between God and man by becoming God and man in one. Through the incarnation of Christ, humanity gains even more than we lost in Adam’s fall. Our very humanity is taken into God, and we become brothers and fellow heirs with God’s own Son.