Two Sundays ago, we began our series of sermons on The Christian Walk. We closed that first sermon with the story of three-year-old Ryan. He and his five-year-old sister, Lisa, were playing on the floor following a family dinner while the adults tried to have a conversation. Lisa opened her new toy nurse's kit and convinced Ryan to be her patient. She took the little stethoscope and placed it on her brother's heart, listened intently -- as good nurses do. Suddenly she announced, "I hear somebody walking around in there."

The adults smiled at this, but Ryan, matter-of-factly answered, "Why, that must be Jesus."

That's the amazing promise, and one of the central claims of the Christian Gospel -- that Christ may live in us. Indeed that is Paul's definition of a Christian -- a person in Chri…