How do we know Scripture is the authority for faith and practice?

In the Reformed faith, we believe that Scripture is the only infallible rule for faith and practice. This conviction is rooted in the biblical principle that all Scripture is breathed out by God and is profitable for teaching, reproof, correction, and training in righteousness (2 Timothy 3:16-17). This means that to uphold God's truth and establish sound doctrine, the Scriptures must be the foundation upon which all beliefs and practices are built. Ultimately, the authority of Scripture provides clarity and certainty in understanding God’s will for our lives.