Commentary on the Epistle to the Galatians

The importance of this Commentary on Galatians for the history of Protestantism is very great. It presents like no other of Luther's writings the central thought of Christianity, the justification of the sinner for the sake of Christ's merits alone. Luther had lectured on this Epistle of St. Paul's in 1519 and again in 1523. It was his favorite among all the Biblical books. In his table talks the saying is recorded: "The Epistle to the Galatians is my epistle. To it I am as it were in wedlock. It is my Katherine."