Chapter 5 — Part I — Article III (Of the Incarnation)
Section 163. Q. How did the devil deceive Adam and Eve? A. Eve saw in Paradise a serpent, which assured her that if men ate of the fruit of the tree of the knowledge of good and evil, they would know good and evil, and would become as gods. Eve was deceived by this promise, and by the fairness of the fruit, and ate of it. Adam ate after her example.