When the church is in mission, it is the true church. The church itself is not only a product of that mission but is obligated and destined to extend it by whatever means possible. The mission of God flows directly through every believer and every community of faith that adheres to Jesus. To obstruct this is to block God's purposes in and through his people.
A missional theology...appl ies to the whole of life of every believer. Every disciple is to be an agent of the kingdom of God, and every disciple is to carry the mission of God into every sphere of life. We are all missionaries sent into a non-Christian culture.
Because we believe that somewhere in the nest of paradigms contained in the phrase "missional church" lies nothing less that the future viability of Western Christianity.
The church of Jesus needs to wake up from the exile of passivity and embrace liminality and adventure or continue to remain a religious ghetto for culturally co-opted, fearful, middle-class folk.
Put simply, the church finds itself in a post-Christendom era, and it had better do some serious reflection or face increasing decline and eventual irrelevance.