The Book of Ephesians, written by Apostle Paul, is a letter to the Ephesus church emphasizing spiritual blessings and unity in Christ. In chapters 1-3, Paul highlights the spiritual riches believers have, such as being chosen, adopted, redeemed, and forgiven. He reveals God's plan to unite all things in Christ, discusses the power available to believers, and underscores that salvation is a gift from God, not earned by works. Paul also stresses the unity between Jews and Gentiles.

In chapters 4-6, Paul urges believers to live worthy of their calling, promoting unity and maturity within the church. He discusses the diversity of gifts, encourages living in love, light, and wisdom, and provides practical advice for relationships, including marriage, comparing it to Christ's love for the church. The final chapter focuses on spiritual warfare, instructing believers to put on the full armor of God to stand firm against the devil's schemes, emphasizing prayer and spiritual preparedness.