1. The city of Thessalonica was founded in 315 BC and became an important port city and part of a major trade route.
2. Chapter 1 discusses how Paul gave thanks for the faith, hope, and love of the Thessalonian church, which had turned from idols to serve God despite facing opposition.
3. Chapters 2-3 describe how Paul and Timothy ministered to and encouraged the church, teaching them the gospel and urging them to increase in love as they awaited Christ's return.