The Nephilim

From 7/13/2009

Genesis 6:1-2,4
When human beings began to increase in number on the earth and daughters were born to them, the sons of God saw that the daughters of humans were beautiful, and they married any of them they chose.... The Nephilim were on the earth in those days—and also afterward—when the sons of God went to the daughters of humans and had children by them. They were the heroes of old, men of renown. 

SONS OF GOD <== ANGELS
The phrase "sons of God" only appears in this context as well as in Job and refers to angels.

5 COMMON VIEWS on the NEPHILIM
(1) hybrid offspring of fallen angels and human women
(2) offspring of descendants of Seth with those of Cain
(3) giant, champion, strong men
(4) hero
(5) not historical figures but just ancient mythology