A Mighty Fortress Is Our God

A 16th-century Lutheran hymn by Martin Luther, based on Psalm 46 and known in German as “Ein feste Burg ist unser Gott.”

Martin Luther: German theologian and reformer whose writings helped establish Protestantism. Luther wrote the hymn, joining theological conviction to congregational song.
Lutheran chorale: A German Protestant congregational hymn, often built around a memorable melody and strophic text. The hymn is a defining example of the Lutheran chorale tradition.
Lutheran worship: Christian worship shaped by Lutheran theology, liturgy, and music. The hymn remains a familiar congregational song in Lutheran services.
Reformation Symphony: Felix Mendelssohn’s Symphony No. 5, which incorporates the chorale “A Mighty Fortress Is Our God.” Its finale brought the hymn’s melody into the symphonic concert tradition.
Psalm 46: A biblical poem that portrays God as refuge and strength amid upheaval. The hymn adapts the psalm’s image of God as a secure refuge.
Ein feste Burg ist unser Gott: The German-language hymn written by Martin Luther and translated as “A Mighty Fortress Is Our God.” This is the original text behind the hymn’s familiar English title.
Hymn tune: A melody designed or adopted for singing the verses of a hymn. The melody gives the text a repeatable musical form for worship and performance.
Bach cantatas: A group of vocal works Johann Sebastian Bach composed for church services and other occasions. Bach’s settings helped preserve and rework the chorale in elaborate sacred music.
Lutheranism: A Protestant Christian tradition originating in the Reformation and shaped by Martin Luther’s teachings. The hymn emerged within the worship and theology of the Lutheran movement.
Strophic form: A song structure in which successive verses use the same music. The hymn’s verses share a melody, making it suitable for congregational singing.

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HymnBroader topic: Its text and tune became emblematic of Protestant hymn singing.