This book is about Paul's two letters to the Thessalonians. They are two of his thirteen letters which are a critical part of the New Testament. He writes these letters to believers who are faithful and exemplary in their manner of living. This is in spite of trials, tribulations, and sufferings. The Thessalonians knew Paul's teaching. However, they were worried about the Rapture and what would become of the believers who had predeceased them. His letters alleviate their fears, build their faith, and confirm the sound biblical teaching he had given them. For believers who are concerned about the security of their salvation or their eternal destination, this book is for you. It will leave you confident both in your salvation and position in Christ. How are believers to handle this crazy world? Paul states that their eternal destination is secure and, for this reason, believers are to console, encourage, and comfort one another until His Calling .