Few actions so briefly and powerfully express the fullness of Christian faith as the Sign of the Cross. In this stirring defense from the Reformation era, readers will discover its ancient roots, rich symbolism, and unmatched spiritual value. With clarity and conviction, this work revives devotion to the Sign of the Cross as both shield and witness, a prayer that marks the believer’s life, repels the Enemy, and draws the soul ever closer to the mystery of the Trinity.