As Maxie Dunnam was driving one day on Poplar Avenue, in Memphis, Tennessee, he noticed a bumper sticker on the car in front of him. He inched closer and saw that the bumper sticker read in big letters, "I am a Generic Christian." That got his attention. He tried to get closer. Some smaller letters were written beneath the larger ones. He got dangerously close to the back of the car to read the words, "Ask me what I mean." He was intrigued even more. What was the person with this bumper sticker trying to say?

Dr. Dunnam's interest was whetted further by the fact that the bumper sticker was on a $65,000 Mercedes. He wondered how a driver of a Mercedes could be considered a generic anything. A couple of blocks later the driver pulled into a car wash. Dunnam had no intention of having his ca…