What is the Bible's doctrine of inspiration, and how does it ensure the accuracy and authority of Scripture?

The Bible teaches that all Scripture is God-breathed (2 Tim. 3:16-17), meaning it is inspired by God and profitable for teaching, reproof, correction, and training in righteousness. Through inspiration, the Holy Spirit supervised and superintended the authors of Scripture, using their unique perspectives and vocabularies to ensure they recorded exactly what God had to say. This process ensured that the original manuscripts were absolutely noncontradictory and consistent in message across 66 books written by more than 40 authors over 1,500 years. The Holy Spirit revealed His message to prophets and apostles through revelation (2 Tim. 3:16), controlled and superintended the writers of Scripture through inspiration (2 Pet. 1:21), and preserved the Word firmly fixed and settled forever (1 Pet. 1:25). The Bible's doctrine of inspiration establishes that God's message is accurately recorded in Scripture, providing the body of truth and doctrine upon which believers base their perspective and life decisions.