A mighty fortress is our God,
A bulwark never failing;
Our helper He, amid the flood
Of mortal ills prevailing.
For still our ancient foe
Doth seek to work us woe;
His craft and power are great,
And, armed with cruel hate,
On earth is not his equal.
Did we in our own strength confide,
Our striving would be losing,
Were not the right Man on our side,
The Man of God's own choosing.
Dost ask who that may be?
Christ Jesus, it is He;
Lord Sabaoth, His name,
From age to age the same,
And He must win the battle.
And though this world, with devils filled,
Should threaten to undo us,
We will not fear, for God hath willed
His truth to triumph through us.
The Prince of Darkness grim,
We tremble not for him;
His rage we can endure,
For lo! his doom is sure;
One little word shall fell him.
That word above all earthly powers,
No thanks to them, abideth;
The Spirit and the gifts are ours
Through Him who with us sideth.
Let goods and kindred go,
This mortal life also;
The body they may kill:
God’s truth abideth still,
His kingdom is forever.
Public domain hymn text (published 1529). Words by Martin Luther (trans. Frederick H. Hedge).
The Story Behind the Hymn
Martin Luther, the Augustinian monk and theologian whose public challenge to the medieval Catholic Church's practices ignited the Protestant Reformation in 1517, wrote this hymn based on Psalm 46 ('God is our refuge and strength, a very present help in trouble'), likely composing it sometime in the late 1520s — a period of genuine and immediate physical danger for both Luther personally and for the broader reform movement he had set in motion. By this point Luther had already been formally excommunicated by the Pope and declared an outlaw by the Holy Roman Emperor at the Diet of Worms in 1521, a ruling that meant, in principle, any person could have killed him without facing legal consequence, and he spent stretches of these years in hiding under an assumed identity to avoid exactly that fate.
Writing hymns in German, the common spoken language of ordinary worshippers, rather than in the Latin traditionally reserved for church liturgy, was itself a deliberate and significant part of Luther's broader program of reform. He believed strongly that congregations should be able to sing theology directly in their own native tongue and understand every word of it, rather than merely listening passively to Latin texts recited by clergy they could not fully follow — a conviction that also drove his monumental work translating the entire Bible into German during these same turbulent years.
This hymn, built around the martial imagery of a besieged fortress and an active battle against 'our ancient foe,' functioned for generations afterward as something close to an anthem for the entire Reformation movement, sung by German Protestants specifically during periods of persecution, plague, and political conflict, when its central image of God as an unshakable defensive stronghold carried immediate, concrete resonance rather than merely poetic force. It is reported to have been sung by Protestant soldiers before battles during the religious wars that followed the Reformation across much of Europe, and by beleaguered congregations facing forced conversion or exile under hostile Catholic rulers.
Its most influential English translation, made by the American Unitarian minister and scholar Frederick Hedge nearly three full centuries later in 1852, brought the hymn into wide and lasting use across English-speaking Protestant churches of every denomination, where it remains today one of the single most immediately recognized hymns associated with the Reformation — a piece of congregational song whose original composer once wrote it while genuinely uncertain whether he would survive the year, now sung casually by congregations for whom that specific danger is entirely a matter of distant history.
