In The Freedom of a Christian, Martin Luther unfolds the paradox at the center of the gospel: the believer is at once perfectly free through faith and a devoted servant through love, owing nothing to anyone and owing everything to everyone.

Written in 1520, this short work captures the heart of Reformation theology, showing that real Christian liberty comes not from independence but from union with Christ - faith alone justifies, and the faith that justifies then produces the service that love requires. One of the Crossway Short Classics: small, cloth-bound, and readable in a sitting.