Adam and Eve were privileged. They only knew good. They did not know evil. God did not want them to know evil. He made them innocent. The serpent offered to Eve the full spectrum of knowledge - both the knowledge of good and the knowledge of evil. The serpent sugarcoated the knowledge of evil with the testimony that possessing the full spectrum of knowledge would deify them. Yet, the serpent failed to reveal the cost of acquiring the knowledge of evil. The rest you know.