I have been studying the Nephilim in the Bible lately, and have been finding some interesting stuff out.

Lets take get a recap of the Nephilim:
In Genesis 6:4 we find the first reference to the Nephilim, translated in the King James Bible as "giants" from the Hebrew word "nephil" (pronounced nef-eel).

Gen 6:4 There were giants in the earth in those days; and also after that, when the sons of God came in unto the daughters of men, and they bare children to them, the same became mighty men which were of old, men of renown.

Lets discuss this verse before going on...

I am persuaded that the Nephilim are not the produce of the "sons of God" having taken to themselves wives of "the daughters of men"

My understanding of this verse is that the writer of Genesis was saying: " In those days on earth there were giants as well as the children of the union of the sons of God and the daughters of men who grew up to be mighty men which were of old, men of renown."

Simply the writer was telling us that there were these two "groups" of people around in those days, the giants (Nephilim) and the sons of the sons of God.

Before now I always thought that the Nephilim were the offspring of the union between the sons of God and the daughters of men. But reading this verse makes it clear that they were not.

Now some people think that because the word "God" in this verse is derived from the Hebrew word "'elohiym" which is plural and as such can be interpreted to be "gods", that that means that this "God" is not the one true God (the God of the Israelites) and therefore it must be referring to Satan and all his demons and "gods" of the underworld.
However if this is true than the same "God" (elohiym) of Genesis 6:4 also would be given the responsibility for being the Creator and creating all that is here today. Why?
Because that word, "elohiym", is the word used in Genesis 1:1

Gen 1:1 In the beginning God (elohiym) created the heaven and the earth.

Moving on.... the next time the Nephilim are mentioned in the Bible, and interestingly the last time as well, is in Numbers 13:33. Again they are referred to as giants.

Num 13:33 And there we saw the giants, the sons of Anak, which come of the giants: and we were in our own sight as grasshoppers, and so we were in their sight.

Now the puzzling thing here is that this is AFTER the flood and the Genesis account of the Nephilim is BEFORE the flood.

Did these beings or creatures manage to survive the Flood?

If you read the information I placed a link to in my previous posting to this one, than you may remember the real meaning of the word Nephilim and its true origins.
As I recall there is something there about "the word also refers to a species of lizard".
Another document I read said that it was a species of sea-dwelling lizard.

Well...as of yet I have no real conclusion to this particular mystery. However here is a link to a web page that I found very interesting!!!! (as in VERY interesting)
CLICK HERE

Of course there are a lot of quotations from the book of Enoch and I am wondering how verifiable that book is. But by the sounds of it, it seems that the book of Enoch was left out of the traditional Bible because the Jewish religious leaders did not want to deal with the topics therein....mainly the mentions of Jesus Christ as the Messiah.

From the reading I have done about the Book of Enoch I have found some interesting things:

"The Greek language text was known to, and quoted by nearly all, Church Fathers. A number of the Church Fathers thought it to be an inspired work, particularly Justin Martyr, Irenaeus, Origen, Clement of Alexandria and Tertullian, based on its quotation in Jude. However, some later Fathers denied the canonicity of the book and some even considered the letter of Jude uncanonical because it refers to an "apocryphal" work (Cf. Gerome, Catal. Script. Eccles. 4.).

The Jewish Sanhedrin at Yavneh c. 90 AD removed this book from its Scriptures. Partly due to this, the book was discredited after the local Christian Council of Laodicea in 364...

The early Christian father Tertullian wrote c. 200 AD that the Book of Enoch had been rejected by the Jews because it contained prophecies pertaining to Christ.[3]" Book of Enoch in the Wikipedia

It seems to me that this is a very good explanation. It makes only too much sense that the Jews would remove books from their religious texts that had anything referring to Jesus Christ as the Messiah. They did remove many of the New Testament books for this reason and are left with the Torah as their "word of God".