Leviticus

The rabbi told his study group, "Next week I plan to go over the story about the sin of lying. To help you understand, I want you all to read Leviticus 28."

The following week, as he prepared to deliver his lesson, the rabbi asked for a show of hands. He wanted to know how many had read Leviticus 28. Every hand went up. The rabbi smiled and said, "Leviticus only goes through 27. I will now proceed with my lesson on the sin of lying."