Ugh...numerology. Tell him that given enough mathematical gymnastics you can find similar patterns and "hidden messages" in any significantly large text. For instance, Muslims claim the same thing about the Quran. But I'll bet he thinks that's nonsensical garbage, right?
Even if the open windows of science at first make us shiver after the cozy indoor warmth of traditional humanizing myths, in the end the fresh air brings vigor, and the great spaces have a splendor of their own - Bertrand Russell