Martin Luther (1438-1546) in Wittenberg, Germany, wrote often of Advent & Christmas. One of his students wrote of Luther saying: For this is indeed the greatest gift, which far exceeds all else that God has created. Yet we believe so sluggishly, even though the angels proclaim & preach & sing, & their lovely song sums up the whole Christian faith, for “Glory to God in the highest” is the very heart of worship.