The book emphasizes that churches need to use planning and strategy like any other business or organization to reach and engage their community, not just prayer. Church marketing can help attract new members, inspire volunteers, and strengthen church communities. The book argues that churches often overlook the importance of marketing because they assume that church growth depends solely on God’s will. In fact, churches also need to take active steps to reach people around them who need the gospel, Barna said. The book also emphasizes that church marketing is not just about attracting people to church, but also about building a supportive community that is relevant to the needs of the congregation. In short, 'Marketing the Church' is a book that motivates churches to adopt a more strategic and structured approach to their growth and community service efforts, emphasizing the importance of marketing as an effective tool for achieving these goals.