How does the message in 2 Timothy 3:16-17 teaches us the Doctrine?

• Divine Inspiration: The phrase "All Scripture is God-breathed" (\theta\epsilon o ́\pi\nu\epsilon\upsilon\sigma\tau o\varsigma) signifies that the Bible originates directly from God. This divine origin makes it the ultimate and infallible source of truth, forming the basis for all Christian doctrine.
• Purpose for Teaching: The text explicitly states that Scripture is "useful for teaching." This means it provides the foundational truths, principles, and commands that define what Christians believe about God, humanity, sin, salvation, and the nature of the church. It systematically lays out the core tenets of faith, guiding believers in understanding and articulating sound doctrine.

The combination of its divine origin and its explicit purpose for teaching ensures that 2 Timothy 3:16-17 presents Scripture as the authoritative and comprehensive guide for establishing and understanding Christian doctrine.