VaultAI Summary: The sermon centers on the supreme authority and enduring reliability of Scripture, emphasizing that the written Word of God is a more sure and enduring foundation than even the audible voice of God or personal spiritual experiences. Drawing from 2 Peter 1:12–21, it underscores that the Christian faith is rooted in historical, eyewitness testimony—such as the Transfiguration—and not in myth or private imagination, while affirming that Scripture, inspired by the Holy Spirit, is the definitive, objective revelation of God for all believers. The preacher warns against the erosion of Scripture's authority in modern Christianity, lamenting the neglect of biblical teaching, memorization, and personal engagement with the text, and exposes how the devil, world, and flesh attack the Word through doubt, distortion, and distraction. Ultimately, the sermon calls believers to treasure Scripture as their birthright, a source of comfort, hope, and spiritual victory, reminding them that the Bible is not only God's promise to preserve His truth but also the means by which the Holy Spirit convicts, guides, and transforms the heart.