Why are the Nephilim referred to as famous heroes of men in Genesis 6:4 ("The Nephilim were on the earth in those days--and also afterward--when the sons of God went to the daughters of men and had children by them. They were the heroes of old, men of renown."), but in the text of the Book of Enoch from the Dead Sea Scrolls, they are portrayed as wicked giants who tormented the humans, and were part of the reason why God sent the flood to cleanse the earth?
Can anyone qualify this discrepancy for me? Why the difference between these two texts? I understand that the Book of Enoch is not a part of the Catholic Canon, but I still think that it's fairly relevant... if not in a religious sense than at least in a cultural one.
Not really an urgent question or anything, I'm just curious.