"WELCOME to San Diego. Now go home." That's what the bumper sticker said. Soon there was another: "Enjoy San Diego. Then go home." People who have been there say that San Diego, California is a friendly city. It is also a city bursting with promise.

San Diego, however, is now the seventhlargest city in the United States. And many residents believe that is big enough. So they put bumper stickers on their cars, "Welcome to San Diego. Now go home." And to be sure you take the hint, they've put their airport right in the middle of the city. (1)

This notsosubtle hint by residents of San Diego is a reminder of one of the subtle messages of the Gospel. "Enjoy the Mountain. Now go home." There are two dimensions to the Christian life: the mountain of exultation and the valley of service. The mou…