Maybe you've heard the humorous story about the pastor who was having difficulty with his assigned parking space on the church parking lot. People parked in his spot whenever they pleased, even though there was a sign that clearly said, "This space reserved." He thought the sign needed to be more clear, so he had a different sign made, which read, "Reserved for Pastor Only." Still people ignored it and parked in his space whenever they felt like it. "Maybe the sign should be more forceful," he thought. So he devised a more intimidating one, which announced, "Thou shalt not park here." That sign didn't make any difference either. Finally, he hit upon the words that worked; in fact, nobody ever took his parking place again. The sign read, "The one who parks here preaches the sermon on Sunday…