How do we know the doctrine of heaven is true?

The truth of salvation and the believer's hope in heaven are intimately connected through the assurance provided by Scripture. In Ephesians, we learn that God drew us near by the blood of Christ, giving believers confidence not only in their present standing before God but also in their future hope of eternal life. As believers, we are assured that Christ has accomplished our salvation, and it is in Him we find the promise of enjoying life everlasting in His presence. This truth is foundational to understanding our hope as it is backed by God's nature and unchanging promises.