The main theme of the book is church organization and leadership. Chapter 3 discusses the qualifications for deacons and elders, while Chapter 5 discusses the church's responsibility for the care of widows, respect for elders, and members in general. | The main theme of the book is church organization and leadership. Chapter 3 discusses the qualifications for deacons and elders, while Chapter 5 discusses the church's responsibility for the care of widows, respect for elders, and members in general. |