In “A Treatise on Relics,” John Calvin delivers a compelling critique of the veneration of relics within the context of Reformation theology. Written with rigorous clarity and logical precision, this work explores not only the historical and cultural significance of relics but also their theological implications. Calvin meticulously dissects medieval practices surrounding relics, arguing that they stem from a misguidance that detracts from the central tenets of faith, primarily the sovereignty of God and the sufficiency of Scripture. The treatise serves as both a doctrinal exhortation and a theological exposition, underscoring the need for reforms in ecclesiastical practices that conflict with Protestant principles. Calvin, a seminal figure of the Protestant Reformation, was profoundly influenced by the need to restore biblical authority and purity to Christian practice. His commitment to Scripture as the ultimate source of truth shaped his arguments against the established Catholic traditions surrounding saints and their relics. Having experienced, firsthand, the fervor of religious disputes in Geneva, Calvin sought to clarify and reinforce the Reformed vision of faith, which is evident in this incisive text. For readers and scholars interested in the intersections of theology, history, and ecclesiology, “A Treatise on Relics” is an essential read. Calvin'Äôs articulate style and incisive reasoning challenge the mindset of relic veneration and encourage a deeper understanding of faith that relies solely on the grace of God and the teachings of Christ. This treatise remains a vital resource for those looking to engage with the core debates of the Reformation era.