Every kingdom must have four parts to be a kingdom – It must have 1) a King, 2) a Law, 3) Citizens and 4) a Place to reign. If it lacks any of these parts, it is not a kingdom. In physical kingdoms all of these parts are physical. For example, King James was the king who translated the King James version of the Bible. During his reign the law was the British Commonwealth law, the citizens were the British people, and the place was England. This kingdom was not eternal, for when king James died he was no longer king and when the people died they were no longer in that kingdom. That kingdom was then left to other people – the next generation.
The spiritual kingdom of God consists of these four parts but they are all spiritual: namely 1) a spiritual King, 2) a spiritual law, 3) spiritual citizens, and 4). a spiritual territory. The king: is Christ. He is not on earth and does not have a physical form. He is a spiritual king in a spirit form (John 4:24). He is at the right hand of his Father in his throne at this time (Rev. 3:21). Its citizens: The kingdom is made up of souls, not bodies, for Jesus said, “The kingdom of God is within you” (Luke 17:21). The Colossians were delivered “from the power of darkness” and translated “into the kingdom of his dear Son” (Col. 1:13). Being translated into the kingdom made them citizens (Eph. 2:19). The law: the kingdom is governed by an eternal law that will never pass away (Matt. 24:35) which deals primarily with spiritual laws for hearts and minds (Heb. 8:8-10). (For example, the beatitudes deal with purity, meekness, righteousness, peace, etc.). Place: Jesus rules in the heart, a spiritual place (1 Cor. 13:1-3). If he does not reign in our hearts he will not accept us. Thus the laws of the kingdom of God are laws governing the inner man – the eternal nature of man. The kingdom was cut out of the mountain, without hands, because it is a spiritual kingdom.