Sayings attributed to Jesus are known as "agrapha." Lane develops criteria for evaluating these sayings of Jesus found in extra-biblical sources like the Nag Hammadi inscriptions and the CopticGospel of Thomas.

"Let the buyer beware." This is the warning that is contained in this article for those who would read The Da Vinci Code. Some of the problems pointed out are the twisting of truths with regard to Jesus' alleged marriage to Mary Magdalene, the fallacy of the woman perceived to be Mary Magdalene in Leonardo Da Vinvi's portrait The Last Supper, and the gnostic texts discovered at Nag Hammadi.