"The Kingdom is primarily the dynamic reign or kingly rule of God, and derivatively, the sphere in which the rule is experienced. In biblical idiom, the Kingdom is not identified with its subjects. They are the people of God's rule who enter it, live under it, and are governed by it. The church is the community of the Kingdom but never the Kingdom itself. Jesus’ disciples belong to the Kingdom as the Kingdom belongs to them; but they are not the Kingdom. The Kingdom is the rule of God; the church is a society of men."

The Theology of the New Testament, George Eldon Ladd