The word “church” (Greek call, gather) means “an assembly or society of those who are called.” The Church of Christ gathers and unites its members (not only those living on earth, but also those who have already departed to another world) into a single whole under a single Head - Jesus Christ. The Church has its own history: the ritual law of the Old Testament Church was the prototype of the New Testament Church - holy, catholic and apostolic. What is the Church of Christ, what does it mean to be her child; structure of the Church, its hierarchy and properties; action in the Church of the Holy Spirit - these and many other issues are covered on the pages of this book.