This book (and its companion volume) presents the teaching of scripture about the kingdom of God. The book proceeds on the assumption that most readers do not already have a clear concept associated with that term. The book surveys a variety of viewpoints about the kingdom before providing a definition and exposition on what Jesus meant by the use of that term. This book provides a thorough analysis of the kingdom's significance in world history and in our time. It prepares the way for the second book on the topic, which is a practical guide to living in the reality of the kingdom.