How do we know that the truth of Scripture is sufficient?

The Scriptures are sufficient because they are the inspired Word of God, providing the necessary truth for salvation, instruction, and spiritual growth. Paul asserts in 2 Corinthians 3 that we are ministers of a new covenant, not of letter but of the Spirit (verse 6). This emphasizes that mere adherence to the law cannot bring life; only the Spirit can impart understanding and conviction of truth. Therefore, the truth revealed in God’s Word, when combined with the work of the Holy Spirit, provides all believers need for faith and practice, ensuring that they can navigate life's complexities with God’s guidance. It is this divine revelation that underpins the doctrines of sovereign grace.