I met and visited with Leonard Sweet in New Mexico about 10 years ago and was impressed with his take on things then. I have since read much of what he has written and always gained insight.
Out of the Question... Into the Mystery is a deliciously Jesus-centered maxim on relationships for the emerging Christian. I say "emerging Christian" rather than "emerging Church" because this book is written on a personal level. How do I think and relate to God, God's story, my faith community, those outside my faith community, and God's creation? This book could also be used as a good introduction for older paradigm believers to the relational and dialogical thinking that is so important to emergents. Written in a friendly and approachable fashion (as are all of Len Sweet's books), Out of the Question opens doors to paradoxes and insights that we consciously or unconsciously bypass. Sweet's penetrating observations on the Abraham - Isaac story are disturbing and yet eye-opening. We get a whole new view on Abraham's success and his failure.
As is common in all Sweet's books, Out of the Question is interspersed with great quotations from various thinkers (such as John Howard Yoder, Brian McLaren, Emily Dickinson, Charles Spurgeon, and even William S. Burroughs) that add wisdom and understanding to the text.
Allow me to conclude with a quote from Sweet himself.
"God is present, and God is relational. This means that truth is relational, found in the give-and-take of honest engagement with God. Faith and obedience are not reflex actions, or blind and mindless conformity to rules and regulations. Faith and obedience are instead played out in a life in full pursuit of God, knowing that at the same time we are being fully pursued by God. Faith and obedience are found in listening to God, questioning God, being challenged by God, and challenging God."