In "Heaven: Biblical Answers to Common Questions," Randy Alcorn explores the assurance of salvation and the promise of eternal life in heaven. He emphasizes that faith in Jesus Christ is the key to knowing we will go to heaven, highlighting scriptures that affirm this foundational belief. Alcorn addresses common doubts and misconceptions about hell and heaven, urging readers to focus on God's grace and the hope of eternal life that comes through faith.

Alcorn encourages individuals to examine their relationship with God and the importance of living a life reflective of that faith. He reassures readers that while doubts can arise, trusting in God's promises and accepting Jesus as Lord and Savior provides a solid foundation for confidence in one's eternal destiny. Through a biblical lens, Alcorn seeks to clarify the nature of heaven and what it means to dwell with God forever.