(continuation based on the premise that the sons of god were fallen angels)
Genesis 1:7, says that on the second day of Creation, “God made the firmament (atmosphere), and divided the waters which were under the firmament from the waters which were above the firmament: and it was so.”
A story released in Harvard Magazine told of how, in 1940, a curator of fossil insects found, in the Oklahoma prairie, a fossilized wing that belonged to a dragonfly (Meganeuropsis americana) whose wingspan was that of almost two and a half feet.” Dragonflies take in perfectly the amount of oxygen that they need to fly. In atmospheric conditions before the flood, the oxygen levels and carbon levels may have been much higher than it is today, explaining the unbelievable size of this insect. (There is a theory of a water canopy in the atmosphere created a sort of greenhouse effect on the planet, but it lacks firm evidence.) The pre-flood era is thought to have been inhabited by life on a much larger scale. Imagine what a man would look like compared to this dragonfly; and then a giant compared to a man.
What happened to the fallen angels?
2 Peter 2:4 says that, “God spared not the angels that sinned, but cast them down to hell, and delivered them into chains of darkness, to be reserved unto judgment;” Also, Jude 1:6 says that “the angels which kept not their first estate, but left their own habitation, he hath reserved in everlasting chains under darkness unto the judgment of the great day.” Whether the eternal chains written are literal or allegorical; those fallen angels have a special place in hell.
“A rare glimpse into the rebellion of angels in heaven with Lucifer is here at hinted. Scripture gives little ink to the details of what took place then in ages past. But Jude here refers to “angels which kept not their first estate. . . God has therefore reserved for them “everlasting chains under darkness unto the judgment of the great day.” It may be that everlasting chains and darkness referred to here are allegorical of the eternal judgement and spiritual darkness these fallen angels have brought down upon themselves. Or, alternatively, it very well refers to some of these beings literally bound to this hour awaiting judgement. It is clear that a significant number of unclean spirits are loose and active in the world. Moreover, various references in the Book of Revelation indicate that others are bound at least until the Tribulation.”
Genesis 7:21-23 says, “all flesh that moved on the earth perished, birds and cattle and beasts and every swarming thing that swarms upon the earth, and all mankind; of all that was on the dry land, all in whose nostrils was the breath of the spirit of life, died. Thus He blotted out every living thing that was upon the face of the land, from man to animals to creeping things and to birds of the sky, and they were blotted out from the earth; and only Noah was left, together with those that were with him in the ark.” This undoubtedly confirms, everything outside of the ark — men, women, children, animals, nephilim — was destroyed.
What is known of the giants after the flood?
Deuteronomy 7:1-5 (see also 20: 13-18) (1 Samuel 15:3)
“When the Lord thy God shall bring thee into the land whither thou goest to possess it, and hath cast out many nations before thee, the Hittites, and the Girgashites, and the Amorites, and the Canaanites, and the Perizzites, and the Hivites, and the Jebusites, seven nations greater and mightier than thou; 2 And when the Lord thy God shall deliver them before thee; thou shalt smite them, and utterly destroy them; thou shalt make no covenant with them, nor shew mercy unto them: 3 Neither shalt thou make marriages with them; thy daughter thou shalt not give unto his son, nor his daughter shalt thou take unto thy son. 4 For they will turn away thy son from following me, that they may serve other gods: so will the anger of the Lord be kindled against you, and destroy thee suddenly. 5 But thus shall ye deal with them; ye shall destroy their altars, and break down their images, and cut down their groves, and burn their graven images with fire.”
Some have said that it is difficult to connect the God of the Old Testament with that of the New Testament. While Jesus walked among men in the New Testament teaching, preaching and showing unconditional love, the God of the Old Testament was commanding the Israelite people through his righteous judgement to annihilate entire people groups, including women and even children. The Amorites, Emimites, Zuzimites, Rephaimites and Anakim all are listed in the Bible as tribes that had giants among them. There are even giants from the Philistines, including the iconic Goliath of Gath. Perhaps our view of an unmerciful God, executing orders to the Israelites to eradicate entire tribes, is tainted, without the realization they were abominations in the sight of the Lord. What we know undoubtedly from the Bible, is that these tribes were wicked and in need of judgment.
The Bible clearly states that giants existed, but how they managed to be alive post-flood is unknown. In Numbers 13:33, which records when Joshua and Caleb spied on Canaan, the other ten spies said, “We saw the giants, the sons of Anak, which come of the giants: and we were in our sight as grasshoppers, and so we were in their sight.” In Amos 2:9, God says that, “yet destroyed I the Amorite before them, whose height was like the height of the cedars, and he was strong as the oaks; yet I destroyed his fruit from above, and his roots from beneath.” Verses throughout the entire Old Testament describe giants as being polydactyl, tall as trees, and extraordinary strong and powerful beings. (1 Chronicles 20:6 and 2 Samuel 21:20) Unfortunately, almost every reported excavation of giant skeletons being found, are hoaxes. Finding verifiable and trustworthy sources for information regarding our ancient past is growing more difficult every year. We only know what God has intended in the Bible
While the Bible is the only source of information that is perfect; other extra-biblical Hebrew texts may hold insight to the nature of these giants.
 Sorenson, David H. Understanding the Bible: An Independent Baptist Commentary. Duluth, MN: Northstar Ministries, a Ministry of Northstar Baptist Church, 2005. Print.
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