Genesis 6:4 states "The Nephilim were on the earth in those days --and also afterwards-- 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." The Nephilim were a race of giants that were produced by the sexual union of the sons of God (presumably fallen angels) and the daughters of men. Translated from the Hebrew texts, "Nephilim" means "fallen ones." They were renowned for their strength, prowess, and a great capacity for sinfulness.
The origination of the Nephilim begins with a story of the fallen angels. Shemhazai, an angel of high rank, led a sect of angels in a descent to earth to instruct humans in righteousness. The tutelage went on for a few centuries, but soon the angels pined for the human females. After lusting, the fallen angels instructed the women in magic and conjuring, mated with them, and produced hybrid offspring: the Nephilim.
The Nephilim were gigantic in
stature. Their strength was
prodigious and their appetites
immense. Upon devouring all of
humankind's resources, they began to
consume humans themselves. The
Nephilim attacked and oppressed
humans and were the cause of massive
destruction on the earth. Two texts of central import to
the story of the Nephilim, the Bible
and the Dead Sea Scrolls, mention
several names for the Nephilim. The
diverse kinds of these giants are
cited in several passages. They are
variously referred to as Emim, or
"Terrors" (Gen. 14:5; Deut. 2:10),
Rephaim, or "Weakeners" or "Dead
Ones" (2 Sam. 23:13; 1 Chron.
11:15), Gibborim, or "Giant Heroes"
(Job 16:4), Zamzummim, or
"Achievers" (Deut. 2:10), Anakim, or
"Long-necked" (Deut. 2:10; Josh.
11:22, 14:15), and Awwim or
"Devastators" and "Serpents." Other
giants are mentioned in these texts
as well, such as Goliath (2 Sam.
21:19), a giant with twelve fingers
and twelve toes who is mentioned as
one of the Rephaim (2 Sam. 21:20),
and a tall Egyptian (1 Chron.
11:23). The passage of Numbers
13:26-33 recounts the Nephilim of
Canaan that Joshua and the other
Hebrew spies saw. Furthermore,
according to Judaic lore, a certain
one of the Nephilim, Arba, built a
city, Kiriath Arba, which was named
for its builder and is now known as
The wickedness of the Nephilim carried with it a heavy toll. Genesis 6:5 alludes to the corruption that the Nephilim had caused amongst humans and themselves: "The Lord saw how great man's wickedness on the earth had become..." Their evil rebellion had incurred both the wrath and grief of God. God instructed the angel Gabriel to ignite a civil war among the Nephilim. He also chose Enoch, a righteous man, to inform the fallen angels of the judgment pronounced on them and their children. God did not allow the fallen angels any peace, for they could not lift their eyes to heaven and were later to be chained. The end of the Nephilim came about in the war incited by Gabriel, in which the giants eventually annihilated each other. (Nephilim, Judd H. Burton)
They were not only shedding the blood of the innocent but ritualistically drinking it as well. An attempt to directly defy God. They were also sacrificing children. They were having sex with the animals and manipulating the genes of all the species. If you cross a crocodile with a giraffe what do you get? Or a komodo dragon with an elephant? The intent was the perversion of creation. This provides an excellent explanation for the dinosaurs.
Noah and his family were giants not only in intellect and size, but in the years that they lived. But when we study the ages that men lived after the flood a shortened life span is soon obvious. ( much of the information in this article comes from the library of Lambert Dolphin )