One of the important benefits of the Reformation Movement was the rediscovery of congregational singing. Luther had strong convictions about the use and power of sacred (God focused) music. He expressed his convictions in this way, ” if any man despises music, as all fanatics do, for him I have no liking ; for music is a gift and grace of God , not an invention of men. Thus it drives out the devil and makes people cheerful. Then one forgets all wrath, impurity and other devices.

The single most powerful hymn of the Protestant Reformation Movement was Luther’s “A Mighty Fortress Is Our God, ” based on Psalm 46. This hymn became the battle cry of the people, a great source of strength and inspiration even for those who were martyred for their convictions. This hymn has been translated into practically every known language and is regarded as one if the noblest and most classic example of Christian hymnody.

-source: 101 Hymn Stories | Kenneth W. Osbeck