Regarding the Kingdom of God: "We want to understand it, examine it, and analyze it. But God enjoins us to enter it. God calls us to turn our backs on the kingdoms of this world and embrace an upside-down world. Underlying all Jesus' teaching about the kingdom is a call to respond. He invites us not to study but to enjoin; not to dissect but to enter."--Don Kraybill, author of The Upside-down Kingdom
"The difference between faith as "belief in something that may or may not exist" and faith as "trusting in God" is enormous. The first is a matter of the head, the second a matter of the heart. The first can leave us unchanged, the second intrinsically brings change."--Marcus S.Borg
A lot to contemplate in those two profound quotes. I especially like the part in Kraybill's quote where he says Jesus "invites us not to study, but to enjoin; not to dissect, but to enter."
If we think we will ever understand God, and that that knowledge will give us faith, we are fooling ourselves. Jesus invites. It's our call to accept or reject the invitation. If we do, we walk into a life-altering paradigm; our world view is turned upside-down and the mockery of the skeptics begins.
The mistake we make is in believing that it is somehow a blind faith. It's not that at all. You don't know what your getting yourself into when you get a new job, join the army... whatever. You don't have enough knowledge of those things to help you make a decision, you either choose to join or you don't. If you do, you learn as you go. Once you belong, things make a lot more sense than they did when you were on the outside looking in. I don't know why we have think that entering a relationship with God is any different. God imparts understanding to those who enter his kingdom, but faith is something he gives us once we enter in, not something we blindly do in order to enter in. There is a big difference, yet not that much different than when we join anything else. The Kingdom of God is just as real as the Jaycees ot the Lion's Club only much more life-changing.