How do we know the infallibility of Scripture is true?

The infallibility of Scripture is a first principle that undergirds all doctrine in Christianity. Scripture itself claims to be inspired and authoritative, as seen in 2 Timothy 3:16, which states that all Scripture is given by inspiration of God. The apostle Peter also touches on this concept in his letters, where he refers to the oracles of God, emphasizing that teachings should align with the Scriptures to be valid. The completeness and reliability of the 66 books of the Bible affirm its infallibility, providing a firm foundation for belief and practice in the Christian faith.