
As a static entity, the institutional church requires support and resources from both the Kingdom of God, and the Kingdom of the world. And, in fact, it assumes the right to both. In this model, Jesus came to establish the church as the center of a new religious system, and now, within the confines of church membership, we have access to God's truth, power, blessing, and forgiveness.
We expect the world to find its way into this institutional church in order to enjoy the benefits of God's Kingdom. And we expect them to bring with them the human and financial resources to maintain the institution.
All of these resources, worldly and heavenly, are consumed in the pursuit of what Dallas Willard has called "sin management." This is, basically, the idea that the entire purpose of the church is to address the problem of sin, either by providing a vehicle by which people seek forgiveness, or a vehicle by which people seek to reverse the negative effects of sin and evil on the society at large. Since we are never done being sinful people, the work of sin management is never done, and the gap becomes more of a sinkhole, continually consuming all the resources the church takes in.

Another option is to imagine the church, not as an institution, but as a bridge. Thus, the objective is not to contain heavenly resources and distribute them within, but to become a sort of conduit through which the Kingdom of God is allowed to invade the world, and the world is granted free passage into the Kingdom of God. This model assumes that Jesus came to infiltrate the world with a Kingdom economy. Rather than establish a new religious system, his intent was to be a conduit between God and man. The church, as the body of Christ, then assumes the responsibility to serve the same mission.
This model is much more consistent with what we read about Jesus. His example suggests that the power, truth, and blessing of the Kingdom was not meant to be contained within religious structure, but was to "bypass the middleman" and come directly into people's lives.
I found these visuals useful in my own process, and I hope they are useful to others.
Blessings,
Doug