Isn't this typical? You get up and come to church -- and on your vacation, too -- on a pleasant summer day and what is the theme? Sin.

"What did the preacher talk on today, Calvin?" asked Mrs. Cooledge. "Sin," said this taciturn president.

"Well what did he say about sin," she persisted.

"Said he was against it."

Of course, that was another time when preachers still knew the word. Have you noticed? Today, progressive preachers think more positively. Yesterday's "I'm not OK, you're not OK," has changed to "I'm OK and you're OK." Think positively, says Dr. Peale. Dr. Shuller will teach you the "Be-Happy-Attitudes." Sin is something old fashioned that we have put behind us. If it's mentioned at all from mainline, liberal pulpits, sin is always social, corporate, systemic. Sin is what we'r…