A preacher told his congregation, "Next week I plan to preach about the sin of lying. To help you understand my sermon, I want you all to read Mark 17."

The following Sunday, as he prepared to deliver his sermon, the preacher asked for a show of hands. He wanted to know how many had read Mark 17.

Every hand went up.

The preacher smiled and said, "Mark only has sixteen chapters. I will now proceed with my sermon about the sin of lying."