Biblical Answer

The Kingdom of God has both already happened and has not yet been revealed in fullness. This concept is rooted in the understanding that God has always been King and has always been sovereign over all He has created. The Bible is clear that the true kingdom will be instituted at Christ's visible return. The Old and New Testaments corroborate each other in establishing the kingdom of God as the destiny of those born again in the resurrection. They will receive rewards for their works on earth.

The "already but not yet" nature of the kingdom of God is also seen in the way it is described in the Bible. In the Old Testament, the kingdom of God is described as a future reality, something that will be established in the age to come. However, in the New Testament, Jesus redefines the meaning of the kingdom of God around himself and his forthcoming death. This means that the kingdom of God is not just a future reality, but also a present reality that can be experienced by faith. Jesus' parables in Matthew 13 give us an idea of the nature of this kingdom, which is like leaven, spreading gradually throughout the world.

The kingdom of God is not just a future reality, but also a present reality that can be experienced by faith. This is seen in the way that Jesus described the kingdom of God as something that is "at hand" (Mark 1:15). The kingdom of God is not something that men wait for, but rather an experience of the heart that is everywhere and nowhere. It is a realm or territory over which God rules, but it is also his sovereignty or kingly rule. The kingdom of God is more inclusive than the kingdoms of the world, encompassing all moral intelligences obedient to the will of God. It is an activity of God, his dynamic presence, his powerful sovereignty becoming visible in history, his transforming intervention in human affairs. The kingdom of God manifests itself through the church, and thereby the future reign of God breaks into the present. This is the "already but not yet" nature of the kingdom of God, which is a present reality that can be experienced by faith, but also a future reality that will be fully revealed at Christ's visible return.