I highly recommend this book by Brian Walsh and Sylvia Keesmaat.
This book is a great contextually driven understanding of the subversive nature of Christian thought for our contemporary society. The work the authors have done in setting the context of not only the Colossian society, but also the cultural context we live in really sets the stage for a powerful new ethic.
The most powerful point of influence for me comes from the ideas revolving around imagination. When we realize that the empire we are facing today is not nations, but the global economy and global consumerism, we can then begin to understand the Christian response to this empire. This response begins with our imagination. The empire of global consumerism seeks to control its subjects by snuffing out the alternative imaginations, by either overwhelming our imaginations with its own propaganda, or subverting our imaginations by directing them into new forms of the same consumerist ethic. When we can no longer imagine the kingdom of God come, then we are forced to accept the kingdoms that we are given. What is necessary is a new imagination, to once again become the creative people created in the image of a creative God, and dream of a new ethic, a new politic, a new practice.
I again hope you will read this book, and will join me in a commitiment to practice creativity, and exercise the imagination.