The Augsburg Confession was composed by Philip Melanchthon and presented to the Diet of Augsburg on June 25, 1530. Luther himself could not attend , he was under imperial ban following the Diet of Worms (1521) , but he reviewed and approved the text from the Coburg fortress, where he was staying under the protection of Elector John of Saxony. The Confession was read aloud before Emperor Charles V and the assembled princes of the empire.

Twenty-eight articles in two parts: the first twenty-one address doctrinal matters (the faith the Lutherans hold), and the last seven address abuses the Lutherans had corrected in practice (communion in both kinds, clerical marriage, the mass, confession, food and fasting regulations, monastic vows, and the authority of bishops). The structure reflects Melanchthon’s irenic instinct: present what we believe, then explain what we have changed and why.

By 1530 the Reformation was thirteen years old and the political situation was urgent. Charles V faced the threat of Ottoman invasion from the east and needed the Protestant princes’ military and financial support. He called the Diet of Augsburg hoping for a settlement of the religious controversy. The Lutheran princes, led by Elector John, saw an opportunity to present their case formally before the Emperor and the Catholic estates.

Melanchthon was the ideal author for the moment. Where Luther was combative, Melanchthon was measured. His goal was to demonstrate that the Lutherans had not departed from catholic orthodoxy, that they had merely corrected specific abuses while retaining the substance of the ancient faith. This accounts for the Confession’s notably conciliatory tone. Whether it succeeded in its irenic purpose is debatable; Rome rejected it, and the schism deepened. But as a confessional document it remains the defining statement of Lutheran identity.

Sola fide. Article 4, on justification, is the confession’s doctrinal heart: “Men cannot be justified before God by their own strength, merits, or works, but are freely justified for Christ’s sake, through faith.” This is the Reformation’s central claim, and the Augsburg states it with clarity and force.

Original sin. Article 2 affirms that since Adam’s fall all men are born with a corrupted nature, without fear of God, without trust in God, and with concupiscence. This nature is truly sin and condemns. The Lutherans held a robust doctrine of inherited depravity.

Points of difference with Reformed standards. The Augsburg diverges from Reformed confessions in two main areas. First, sacramentology: Articles 9–13 affirm baptismal regeneration and a bodily presence of Christ in the Lord’s Supper (“the true body and blood of Christ are truly present under the form of bread and wine”). Second, the later Lutheran tradition rejected the Reformed doctrine of double predestination, viewing it as incompatible with the universal offer of the gospel. The Formula of Concord (1577) makes this explicit.

The church. Article 7 offers the Augsburg’s famous definition: “The Church is the congregation of saints, in which the Gospel is rightly taught and the Sacraments are rightly administered.” This marks the church by Word and sacrament, a definition broad enough to be shared by nearly all Protestant traditions.

“Also they teach that men cannot be justified before God by their own strength, merits, or works, but are freely justified for Christ’s sake, through faith, when they believe that they are received into favor, and that their sins are forgiven for Christ’s sake, who, by His death, has made satisfaction for our sins.”

Article 4, Of Justification

The full text of the Augsburg Confession is available at the Book of Concord.