This book is the result of a simple yet truthful and in-depth biblical and organized study of what the Bible says the Church is. It covers four key aspects to understanding this divine institution composed of the people of the Lord Jesus. It explains its nature, that is, what it is, its essence through marks that distinguish the Church, and what membership means; it explains the authority and power of the Church, its government and organization; it clearly expounds on the mission of the Church and its methodology for fulfilling it; and it concludes by explaining the topic of the Church's worship, its elements and principles. It is a key book for beginning to understand a sound and consistent biblical ecclesiology, presented in an understandable and warm manner to observe these truths about the Church of Christ.