Besides the person of Jesus, the Kingdom of God is the most important and all-encompassing concept of scripture. In the Old Testament, they predicted it, described it, prophesied it and pictured it. In between the testaments, they yearned for it. And when Jesus came, there was nothing that he talked about more. Funny we don't hear about it much.
Author John Noe says "The kindom (of God) remains one of the most misunderstood, misconstrued, confused, abstracted, and contested realities in Christianity. Most churches today rarely mention the kingdom, let alone teach and obey its established and present-day elements."
Perhaps we should think about this more...