A serpent tempts Eve to eat from the Tree of Knowledge of Good and Evil, and she succumbs, offering the fruit to Adam as well. As a punishment, Yahweh banishes the couple from the Garden and "placed on the east side of the Garden of Eden the cherubim with a fiery revolving sword to guard the way to the Tree of Life". The Lord says he must banish humans from the Garden because they have become like him, knowing good and evil (because of eating the forbidden fruit), and now only immortality (which they could get by eating from the Tree of Life) stands between them and godhood: