Martin Luther’s Preface to the Letter of St. Paul to the Romans summarizes the core
belief of the Reformation: justification by faith in Christ. The relatively short document
can even serve as an introduction to the Reformation movement as a whole, as it
uniquely and succinctly lays out some of its characteristic ideas. As well as covering the
relationship between faith and good works, Luther addresses the nature of sanctification
in general and the conflict between the spirit and the flesh. The Preface to the Letter of
St. Paul to the Romans is a quick and rewarding read, serving as a gateway text to the
Reformation and the theology of Martin Luther.