Johann von Staupitz, Luther’s mentor, asked him once, “Luther, what happens if all this works, if you have your Reformation. What happens to the devotions, and to the pilgrimages, and to the relics, and to all the wonderful things of the Church; and to the marvelous, majestic liturgy, with all of its pomp and ceremony; all these things that we’ve grown up with and that we love so dearly and that are so close to our hearts? What will be left when you’re through?”
And Luther said, “Christ.”
“The aim of the Reformation was not the abolition of the priesthood but the abolition of the laity. Every Christian was to realize his priesthood: ‘Ye are a chosen generation; a royal priesthood, an holy nation, a peculiar people; that ye should show forth the praises of Him who hath called you out of darkness into His marvelous light.’ This is the Biblical conception of worship—an offering of the entire congregation in praise and adoration. The Reformers aimed at restoring this heritage to a people who had become accustomed to being spectators at a ceremonial in a language they did not understand. They therefore insisted on everything being said at worship in a clear and intelligible voice in the language of the common people. They also encouraged the revival of congregational singing and audible participation in the Lord’s Prayer and the Apostles’ Creed. They restored the practice of regular reception of the Lord’s Supper in both elements.”
–Rev. D.H.C. Read. “THE REFORMATION OF WORSHIP III. The Direction of Contemporary Worship,” Scottish Journal of Theology 8:3 (Sept. ’55), p.285.
Also, HERE is an issue of Worship Notes devoted to Reformation Day.