How do we know the promise of eternal life is true?

The promise of eternal life is grounded in the very nature of God and His faithfulness to His word. In John 10:28, Jesus states, 'I give unto them eternal life; and they shall never perish.' This assurance is part of the unbreakable covenant between the Father and the Son, wherein those given to Christ are secure in His hands. Furthermore, the resurrection of Christ is the ultimate evidence that death has been conquered, thus affirming the believer's hope of eternal life.

Moreover, the Scriptures describe God's faithfulness in fulfilling His promises, as seen in Romans 8:38-39, which assures us that nothing can separate us from the love of God. This assurance instills confidence in the believer's heart, enabling them to rest in the truth of eternal life, not as mere speculation but as a guaranteed promise from a faithful God. Therefore, believers can confidently assert the truth of this promise through the work of Christ and God’s unwavering faithfulness.