One night, Mark Ralls, a minister in North Carolina, was leaving his church at the same time a meeting of Alcoholics Anonymous was adjourning. He found himself in conversation with a man standing next to his rusty, worn-out Ford, and introduced himself as one of the pastors of the church that had hosted his group. The man sighed and told Mark how long he had intended to "get back to church." So Mark invited him to worship. Immediately, the man launched…