What does it mean that only the Word of God endures forever?

The declaration that 'the word of our God shall stand forever' (Isaiah 40:8) points to the eternal nature of God's promises and the gospel message embodied in Jesus Christ. It emphasizes that human endeavors, wisdom, and even established religions will ultimately fail, but God's Word remains true and steadfast. This is underscored in 1 Peter 1:23-25, where it is explained that the gospel is what lasts, signifying that the eternal validity of God's revelation through Christ is what believers can depend on for their salvation. Therefore, only through Christ can one find security and hope, as He is the living Word through whom God's redemptive purposes are fulfilled.