In the Gospels, the accounts of the life of Jesus, we find the message of a new kingdom. A kingdom that is radically different than the kingdoms of earth. This kingdom, which is inaugurated by the ministry of Jesus is one that will change the earth. This Kingdom is last forever.
Now there is an interesting play on words that happens here. You see, in one book its called the Kingdom of Heaven in other books its called the Kingdom of God. So which is it? Well, when you begin to think about it, they're really calling it the same thing. Heaven is where God is, thus the kingdom of Heaven is really the kingdom of God. Its the kingdom of God.
Now what can we see from thinking about this. Well this kingdom is not a location. This kingdom is whereever God is - and he's everywhere - so location isn't a good way of understanding this kingdom.
If this kingdom is where God is, then perhaps its about a certain way that it works. Its a kingdom that is vastly different than the other kingdoms. This kingdom is about flow, organization, orientation, and ethics. Its a kingdom that operates by a different set of criteria.
This is why Jesus can say its like a Mustard Seed. You see mustard seeds spread like crazy. In Jesus' day, they were actually outlawed in Jerusalem. They were outlawed because they could destroy foundations, walls, and buildings. It would overtake gardens. Mustard seeds could get out of control. It talks about something that comes in and completely changes the entire make up of the area.
This kingdom is where God is. This kingdom does not have boundries. This kingdom is not about power, or about success. This kingdom is not about control. This kingdom is about being in the presence and living out the presence of God.
And may this kingdom come.