From an evangelical Christian perspective, the Apostle Paul is traditionally regarded as the author of the Book of Ephesians, including Ephesians 1:9-10. This passage reads:

**Ephesians 1:9-10 (ESV)**:
*”Making known to us the mystery of his will, according to his purpose, which he set forth in Christ as a plan for the fullness of time, to unite all things in him, things in heaven and things on earth.”*

### Background on Paul

– **Apostle Paul**: Formerly known as Saul of Tarsus, Paul was a Pharisee who initially persecuted Christians but became one of the most influential leaders in the early Christian church after an encounter with the risen Christ on the road to Damascus (Acts 9). His conversion and subsequent missionary work played a crucial role in spreading Christianity throughout the Roman Empire.

– **Context of Ephesians**: The Book of Ephesians is often considered a prison epistle, meaning it was likely written while Paul was imprisoned (traditionally during his imprisonment in Rome). It is addressed to the church in Ephesus, but many scholars also suggest it may have been intended for a broader audience, given its universal themes.

### Themes in Ephesians

– **Mystery of His Will**: In Ephesians 1:9-10, Paul discusses the “mystery” of God’s will, emphasizing that God’s plan involves uniting all things in Christ. This reflects the theological concept of the cosmos being reconciled through Jesus, highlighting God’s redemptive work through Christ.

– **Unity in Christ**: A key theme in Ephesians is the unity of believers in Christ, which underscores the idea that all things—both celestial and earthly—are to be brought together under Christ’s lordship.

– **Divine Purpose**: Paul emphasizes the purpose of God’s plan in this passage, showing that redemption and unity in Christ are central to the Christian faith, and aligning with the broader narrative of God’s salvation history.

### Conclusion

For evangelicals, Paul is not only a historical figure but also an authoritative voice whose writings continue to shape Christian doctrine and practice. Ephesians 1:9-10 underscores key themes of mystery, purpose, and unity that are foundational to evangelical beliefs about God’s plan for humanity through Christ.