What does it mean that the Word of God is sufficient?

The sufficiency of Scripture asserts that the Bible provides everything believers need for salvation, faith, and godly living. In 2 Timothy 3:16, it states that all Scripture is God-breathed and is useful for teaching, rebuking, correcting, and training in righteousness. This means that the biblical text is complete in teaching the way of salvation through faith in Christ, making it reliable and authoritative. Believers are called to base their faith and actions on the truths revealed in Scripture, rather than relying on extra-biblical revelations or experiences, affirming that all necessary knowledge for life and godliness resides in the Word of God.