The kingdom of Christ is one of the most fundamental subjects in the word of God. The history of redemption on earth culminates in the coming of this long-promised kingdom. But what is it? What does it mean for Christ to reign? Has the kingdom come and is Jesus reigning now? Many expect a physical, earthly reign of Jesus to commence in Jerusalem in the millennium, as they understand it. Is this the teaching of scripture concerning the reign of Jesus? These and other questions are addressed in this first part of a series on the kingdom of Christ.