The Torah mentions the Nephilim as giants in both sections Genesis 6-4 and book of Numbers. Who and what are they? I have had conflicting answers that they were fallen angels to just a story thrown in as filler? Can you please shed some light on this subject?
The most basic understanding of the Nephilim is that they were in fact giants as you mention. The word Nephilim is derived from the Hebrew word Naphal which literally means “fall or drop”. The commentators explain that these giants were called Nephilim since the hearts of those that saw them would “drop” as a result of seeing these awesome beings.
There also exists a Rabbinic tradition mentioned in some Midrashim and commentaries that the Nephilim were two angels who descended to earth to become humans. According to this tradition, they were called Nephilim since they “fell” from heaven to earth, from the spiritual world to the physical world (again deriving from the Heberew word Naphal meaning fall). Certainly according to this tradition, these fallen angels were giant beings as well.
This Rabbinic tradition further asserts that two of the children of these fallen angels were none other than Og and Sichon, mentioned in Numbers as the powerful kings of Bashan and the Emorites respectively. The Nephilim mentioned in Numbers as giants that the spies saw while spying out the land of Israel were therefore Og and Sichon.
Of course, any mention of fallen angels who in essense became humans, begs a deeper understanding. Recall that these fallen angels are mentioned in the same context as the intense immorality which pervaded mankind. The actions of mankind have reprecussions far beyond the physical world we find ourselves in. All our actions, whether positive or negative impact the spiritual worlds as well. The world had become so depraven that it impacted even how the angels behaved, to the extent that some angels descended from their pure spiritual realm to our physical world. The fallen angels were therefore, in essence the result of the actions of mankind on earth.
