In Genesis, Adam and Eve were cast out of Eden not so much as punishment for eating from the Tree of Knowledge (granting them knowledge of good and evil) but out of fear that they might become immortal.

Genesis 3:22 And the LORD God said, "The man has now become like one of us, knowing good and evil. He must not be allowed to reach out his hand and take also from the tree of life and eat, and live forever."

I've always found this very interesting. Why must not Adam be allowed to live forever? If this is something to be avoided, why was the Tree of Life in the Garden of Eden at all? Is God's immorality dependant upon the fruit of the Tree of Life?

Of course, Genesis is largely allegorical so it might be more relevant to ask what the symbolic connection might be between knowledge and immorality. Does it refer to gaining a soul through understanding good and evil and thus gaining entrance to heaven? Or does it mean that the true things of value come with the "higher" funtions of our being?

Either way, I still want to know why God would be displeased with this.