This book is a wake-up call for all servants of God, including believers. It explains the roles and duties of pastors, evangelists, or preachers in the church and in the community. The author of this book insists that the teachings of preachers before the assembly must be based on biblical principles. He advises pastors, evangelists, or preachers to be the example to follow for christians and other people in society; and their humility must inspire everyone.