Many interpretations of Genesis 6 have been influenced by extra-biblical sources, particularly the Book of Enoch. However, a careful examination of the biblical text itself reveals a different picture.
Jesus clearly states that angels do not marry. This contradicts interpretations that claim the "sons of God" in Genesis 6 were angels who married human women.
This passage doesn't indicate that the "sons of God" were angels. The term likely refers to God-fearing men fulfilling God's command to multiply.
God's judgment is directed at man, not at fallen angels.
This verse indicates that giants existed before these marriages occurred. The offspring of these unions are described as "mighty men" and "men of renown," not as monstrous giants.
God's sorrow is over man's wickedness, not over supposed angelic intermarriage.
God decides to destroy man and animals, not fallen angels or their supposed offspring.
Giants (Nephilim) are mentioned after the flood, indicating they were not unique to the pre-flood world.
Goliath, one of the largest recorded giants in the Bible, was about 9 feet 9 inches tall - far from the implausible sizes suggested in some extra-biblical accounts. If a 6-foot man is standardized at 180 lbs., then the noteworthy Goliath would have weighed about 772 lbs. We cube the height ratio, then multiply by 180.
We are told in 1 Enoch 7:2, "And they became pregnant, and they bare great giants, whose height was three thousand ells." An ell throughout history has ranged from 18 to 54 inches. Thus, we are told the giants ranged from 4500 to 13500 feet (1.372 to 4.115 kilometers) in height!
A 4500-foot nephalim, by the Book of Enoch's reckoning, would have weighed about 37,968,750 tons. How many centuries would it take for any one creature of any type to grow to such a size? For the truly curious, a 13500-foot nephalim would have weighed about 1.025 billion tons. I offer no further commentary on marauding supergiants for the recalcitrant or uneducated mind.
A careful reading of Genesis 6, in light of Jesus' teaching and other biblical passages, suggests that the "sons of God" were likely godly men, not angels. The Nephilim were not the offspring of these unions but existed separately. The biblical account focuses on human sin and God's judgment, not on fantastical tales of angelic intermarriage or impossibly large giants.
Text by Zach Anderson (zmanderson@gmail.com). Placed in public domain at ultrafree.org. KJV text is used. Feel free to copy and share, free of charge.