The Freedom of a Christian

First published in 1520, The Freedom of a Christian stands as one of Martin Luther's most influential and enduring works. In this brief treatise, the German Reformer explores the heart of Christian ethics and shows how justification by faith alone reshapes the believer's life. It is here that Luther offers his famous paradox: "A Christian is a free lord of all and subject to none; a Christian is a dutiful servant of all and subject to everyone." He also expands on key Reformation themes such as the priesthood of all believers and union with Christ.