On the Authority of Holy Scripture

Heinrich Bullinger's treatise on the authority of Scripture emerged from the theological upheavals of the early Reformation, when questions about religious authority had fractured Western Christianity. Writing in Zurich as Huldrych Zwingli's successor, Bullinger faced the urgent need to articulate a Reformed position on biblical authority that could stand against both Roman Catholic appeals to tradition and church magisterium, and the more radical Protestant movements that claimed direct revelation or relegated Scripture to secondary status.

Bullinger argues that Scripture possesses inherent divine authority, independent of ecclesiastical validation or human reasoning. He develops the principle that Scripture is self-authenticating through the internal testimony of the Holy Spirit, while simultaneously maintaining that Scripture interprets Scripture. The treatise establishes the sufficiency of biblical revelation for all matters of faith and practice, rejecting the Catholic doctrine that unwritten apostolic tradition carries equal authority with the written Word. Bullinger carefully distinguishes between the essential clarity of Scripture in matters necessary for salvation and the difficulty of certain passages that require careful study and spiritual discernment. He addresses the relationship between divine inspiration and human authorship, arguing that God worked through the biblical writers without obliterating their individual styles and historical contexts.

This work became foundational for Reformed theology's approach to biblical authority, influencing subsequent generations of Protestant theologians and finding expression in major Reformed confessions. Bullinger's balanced treatment of Scripture's divine authority and human characteristics provided a theological framework that avoided both rationalistic reduction and fundamentalist rigidity. The treatise remains significant for its systematic development of key principles that would shape Protestant hermeneutics for centuries.

Who should read this: Theologians and church historians studying the development of Reformed doctrine will find this essential, as will pastors seeking to understand the theological foundations of Protestant biblical interpretation. This is not light devotional reading but requires familiarity with Reformation-era theological debates.