The Sufficiency of Scripture: A Critical and Constructive Account

One of the traditional perfections of Scripture according to historic Protestant orthodoxy, alongside inspiration, authority, and clarity, is sufficiency. Biblicists have taken this ball and run with it, insisting that everything we need to know, not only for salvation but for much else, is in the Bible. This essay attempts to clarify the concept of Scripture’s sufficiency by reviewing its history and by specifying how, and for what, it is “enough.” This involves distinguishing between formal and material sufficiency, and drawing distinctions between sources, resources, and norms. The paper argues that the sufficiency of Scripture must be understood alongside the principle of sola scriptura, and that the Bible alone is enough for ruling the church’s social imaginary, especially as this concerns the story of what God is doing in creation and redemption. Scripture is sufficient for understanding extra-biblical knowledge in the framework of biblical narrative and for perceiving reality as sustained and directed by the triune God. The essay concludes by offering recommendations for understanding the sufficiency of Scripture both in its proper domain (saving knowledge) and in areas outside its proper domain, such as the natural and social sciences, including psychology.