Here's what I'd put in an old post:
[quoting old post]
The following is taken from Dr Paul Martin Henebury's website... His conclusion, however, differs from mine (in what he views as the most likely choice among these three options):
1. The “Sons of God” are angels/spirits.
Advocates include: G. Wenham[3], Wood, Kalisch, Unger, Van Gemeren, Sauer, Yates, and Clines[4].
Fallen angels/angelic beings cohabited with humans. These angelic beings made marriages with the fairest of the women. Their offspring are the nephilim/giants of v. 4.
2. They are Sethites.
Advocates: Calvin, Luther, Poole, Keil, Lange, J. Murray, Aalders, Sailhamer, Green, Scofield, and Scroggie.
What is involved is the mixing of the godly Sethite line with the ungodly line of Cain. This polluting of the line of the promised seed (which Balaam also later encouraged) is what provoked God to call for the Flood.
3. They are Princely Rulers/Dynastic Rulers.
Advocates: Kline, Millard, and Dexinger.
Men of noble birth or princely genealogy married below themselves. The
bene ha elohim were “sons of the gods”, a term used of kings in extra-biblical sources[5].
[end quoting]
I believe Option 3 is the most likely, as I do
not believe Job 1 & 2 is something which transpired UP IN Heaven (but on the earth, instead), based on a study I did, in those chpts.
[end quoting old post]
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[many are aware of only the first TWO options]