When [[Metatron]] uncovers "Ezekiel's" real identity, he reveals that [[Gadreel]] was the angel who was tasked to guard the Garden of Eden to prevent any evil from entering. Castiel explained that he was the angel who allowed [[Lucifer]] into the Garden, which led to the corruption of humankind, the creation of [[demons]] and [[Hell]], the departure of God, and the [[archangels]]' scheme to start the [[Apocalypse]]. However, when Gadreel tries to explain, he told Dean he loved humanity and set them free, but he is adamant that what happened in the Garden wasn't his doing. Sam feels that while he was possessed, he believed that Gadreel felt misunderstood.
[[File:TheSerpent.jpg|thumb|right|350px|Jack is confronted by a serpent.]]