“On Christmas eve of 1538 Dr. Martin Luther was very jocund. All his words and songs and thoughts were of the incarnation of our Lord. Then with a sigh he said, ‘Oh, we poor men that we should be so cold and indifferent to this great joy which has been given us. This indeed is the greatest gift, which far exceeds all else that God has created. And we believe so feebly even though the angels proclaim and preach and sing, and their song is fair and sums up the whole Christian religion, for ‘glory to God in the highest’ is the very heart of worship.’”
Quoted in Bainton, Here I Stand: A Life of Martin Luther (1950), 173.