Institutes of the Christian Religion
Institutes of the Christian Religion (Latin: Institutio Christianae Religionis) is a foundational systematic theology composed by the French Reformed theologian John Calvin, offering a comprehensive exposition of Protestant doctrine centered on the knowledge of God the Creator, redemption in Christ, and the external means or aids by which God invites us into society with Christ.[1] First published in Latin in Basel in 1536 as a modest catechism-like apologia amid the early Reformation's persecutions, it was Calvin's initial major theological work, drafted when he was twenty-six years old.[2] The text underwent successive expansions and revisions, with a French translation appearing in 1541, culminating in the definitive Latin edition of 1559 organized into four books with eighty chapters, which solidified its structure and doctrinal depth.[3] Emphasizing divine sovereignty, predestination, justification by faith alone, and the authority of Scripture over tradition, the Institutes served as a bulwark against Catholic critiques and a primer for Reformed piety, profoundly shaping confessional Protestantism across Europe and beyond.[4] Its enduring influence is evident in its role as the doctrinal cornerstone for Reformed churches, guiding theological education, ecclesiastical governance, and the spread of Calvinism despite ongoing debates over its rigorous predestinarian framework.[5]