According to the Holy Bible, the Nephilim were the offspring of the sons of God and the daughters of men.
"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" (Genesis 6:4 New International Version).
The King James Version uses different wording. "There were giants in the earth in those days..." (Genesis 6:4 King James Version) Here the term "giants" is used instead of Nephilim, also the verse states that the giants were "in the earth" which is interesting if you're familiar with Zecharia Sitchin's theory that the Nephilim were extraterrestrials who came here to mine the earth for gold.
Numbers 13:33 states that the Nephilim are giants and that the sons or descendants of Anak come from the giants. "We saw the Nephilim there (the descendants of Anak come from the Nephilim). We seemed like grasshoppers in our own eyes, and we looked the same to them" (Numbers 13:33 New International Version).
The name Anak means long neck. The desendants of Anak and the Nephilim are called Anakim or Anakites.
The Encyclopaedia Biblica attempts to outline the story using what we know of early Hebrew and Babylonian myths. Here the sons
of God are referred to as the divine ones who took human women and produced offspring with them, they also taught humans how to clothe themselves, and how to forge brass and iron. Later their offspring, the Nephilim, became great rulers of the land and mankind prospered.
The divine ones were divided into two groups, those who wanted to rid the earth of human beings and those who did not. The Lord of the divine ones agreed with the former and said "I will sweep them from the earth, lest they become too strong." But the divine ones who were friendly with men whispered softly in the ear of the Lord convincing him to wait.
Zecharia Sitchin associates the Biblical Nephilim with the Anunnaki suggesting that they are related beings, extraterrestrials, but of different ranks, the Anunnaki being a certain group of Nephilim, specifically "those who came down from the heavens" or "those who fell from heaven" which would also be the same as the divine ones who were friendly with men.
In tablet six of the ancient Epic of Creation Marduk says "Blood to blood I join, blood to bone I form an original thing, its name is MAN, aboriginal man is mine in making." Then they perform an Annunaki sacrifice where "...they cut his arteries and from his blood they created man."
This seems to suggest that humans were created from the blood of the Anunnaki, which is similar to Zecharia Sitchin's suggestions in The 12th Planet, where he states that the Anunnaki/Nephilim genetically engineered human beings by combining their genes with Homo erectus.
According to The Secret Doctrine the Nephilim are the hairy men or "satyrs" who were the last descendants of Atlantis. "Esoteric records show these hairy creatures to be the last descendants of those Lemuro-Atlantean Races, which begot children on female animals, of species now long extinct; thus producing dumb men, 'monsters,' as the Stanzas have it" (Petrovna Blavatsky 819).
The Hebrew of Nephilim may mean "the fallen ones," and according to the Book of Enoch the Nephilim were the offspring of mortal women and the Grigori, or The Watchers, a class of fallen angels. "The fallen" also refers to "the dead" in Hebrew.
The term is also connected with "those who fall on the weak," or "those who have fallen from heaven," and "those who have been born contrary to nature" (Cheyne & Black 3393).
Fallen angels or the fallen ones are sometimes called rebels or rebel angels.
Also known as Nefilim, The Mighty Ones, Heroes, The Fallen Ones, Giant Nephilites, Famous Warriors, and known as or associated with the Gibborim, The Anunnaki, and The People of the Shem.
See Also: Creatures by Type » Aliens, Hybrids
Blavatsky, Petrovna. The Secret Doctrine. London: Theosophical Publishing Society, 1893.
Cheyne, Thomas Kelly, & Black, John Sutherland. Encyclopaedia Biblica. New York: Macmillan, 1902.
King, L.W. The Seven Tablets of Creation. London: 1902.
Sitchin, Zecharia. The 12th Planet. Reprint. Originally published: New York: Stein & Day, 1976.
The Babylonian Creation Myth (Enuma Elish). Web site: http://frontpage.montclair.edu/alvaresj/JAMYTH/Enumaelish.html. Retrieved on 06/03/2008.
The Holy Bible, King James Version.
The Holy Bible, New International Version.