Luther’s Sermon on Conversion (January 25, 1534)

On January 25, 1534, Martin Luther preached a message on conversion that continues to calm troubled consciences: “To be converted to God means to believe in Christ, to believe that He is our Mediator and that we have eternal life through Him.” In an age of instability, Luther refused to let anxious hearers search for peace by staring inward, tallying progress, or multiplying religious exertions. He pointed them outward and upward—toward the living Christ, who stands between God and sinners.

Luther’s emphasis was not indifference to holiness, but the right order of salvation and obedience. Repentance was not a self-improvement project meant to earn acceptance; it was a turning from sin and self-trust to the Savior who has already done what sinners cannot. By directing hearts to Christ’s finished work, he offered a steady refuge for those plagued by guilt, fear of judgment, or spiritual exhaustion. “Therefore there is now no condemnation for those who are in Christ Jesus” (Romans 8:1).

Wittenberg and a Turbulent Age

The preaching ministry associated with Wittenberg unfolded amid political tension, ecclesiastical upheaval, and widespread uncertainty. Many ordinary people carried heavy burdens—fear of God’s wrath, fear of death, fear that they had not done enough. Luther’s pastoral courage lay in speaking plainly where confusion reigned: confidence before God rests not on the quality of one’s contrition or the quantity of one’s works, but on Christ the Mediator. “For there is one God and one mediator between God and men, the man Christ Jesus” (1 Timothy 2:5).

This was a form of heroism shaped by faithfulness: telling the truth that liberates, even when it unsettles entrenched systems and the pride of the human heart. It called hearers to humility, to honest repentance, and to a faith that clings to Christ alone.

Comfort, Assurance, and Renewed Obedience

Luther’s January sermon also safeguarded assurance. When believers are tempted to measure God’s love by their spiritual temperature, they are invited to look instead to God’s promise in His Son. “If you confess with your mouth, ‘Jesus is Lord,’ and believe in your heart that God raised Him from the dead, you will be saved” (Romans 10:9).

From that grace flows renewed obedience—not as payment, but as gratitude; not as fear-driven striving, but as love born of being reconciled to God.