The THREE Groups mentioned all are about sexual immorality at a LEVEL going far beyond mere adultery.
This is why they are grouped together and the Judgment was SET thru these THREE as an example for us to fear God.
Ponder/Dwell/Meditate on this = God said ALL flesh had corrupted themselves and the earth had to be CLEANSED from this corruption.
The plan of satan was almost 100% successful = pollute the bloodline to prevent the Messiah
Only 8 made it thru = God knew why and HE told us why.
This is why they are grouped together and the Judgment was SET thru these THREE as an example for us to fear God.
Ponder/Dwell/Meditate on this = God said ALL flesh had corrupted themselves and the earth had to be CLEANSED from this corruption.
The plan of satan was almost 100% successful = pollute the bloodline to prevent the Messiah
Only 8 made it thru = God knew why and HE told us why.
This need to Ponder/Dwell/Meditate sounds good but not when it becomes the reason to violate other rules of hermeneutics and implement riddles that the author never intended.
Why can't it just mean what it says?
1Now the earth was corrupt in God’s sight, and the earth was filled with wickedness. 12God saw how corrupt the earth was, for every creature had corrupted its way on the earth. 13Then God said to Noah, “I have decided to put an end to every creature, for the earth is filled with wickedness because of them; therefore I am going to destroy them along with the earth.
I comprehend the English translation corruption as it is usually intended, like a corrupt politician, or a corrupt priest. Fallen, having decided to follow sins and lusts that they knew were wrong. Having become wicked. I don't think there is any secret riddle about DNA. That is eisegesis. There is no intention by the author to talk about DNA, genes or bloodlines. The emphasis is on moral wickedness that men are guilty.
CSB Version
5When the Lord saw that human wickedness was widespread on the earth and that every inclination of the human mind was nothing but evil all the time,a 6the Lord regretted that he had made man on the earth,a and he was deeply grieved. 7Then the Lord said, “I will wipe mankind, whom I created, off the face of the earth, together with the animals, creatures that crawl, and birds of the sky — for I regret that I made them.” 8Noah, however, found favor with the Lord.a
Here is the context which should be the superior rule to use in interpretation.
Chapter 4 mentions the daughters of men when it names two of the women in Cain's camp who's names in the Hebrew meant Fair and Pleasant/Lovely. Now imagine a Hebrew reader having read that before they got to chapter 6.
Also in Chapter 4 it mentions Seth's lineage after having listed Cain's and his daughters (children of men/daughters of men) and When it lists Seth's lineage it said that they began to call themselves by the name of the Lord, that is what it says in the Hebrew. So a Hebrew reader would notice that these on Seth's camp on the West of Eden were calling themselves by the name of the Lord (sons of God) and that the sons of men on the East of Eden (thrust out from the presence of the Lord) and building a city which has in it's name a reference to Man, and whos daughters have names that mean FAIR, would not be as confused as the English reader when they read chapter 6.
The Hebrew reader would remember who the sons of God were from chapter 4 and they would remember the women in Cain's camp that were fair and they would know exactly who the author was referring to when they read "the sons of God and the daughters of men" Which is why the author does not explain in Gen 6 because he assumed the reader caught the reference from chapter 4.
This is superior interpretation because it is exegesis following the rule of context and normal reading comprehension skills.
This also fits the theological theme for the rest of the bible about the godly falling way when they married wicked idolatrous wives. It also fits the New Testament admonition to not have fellowship with darkness and to not be unequally yoke with unbelievers.
Exegesis vs eisegesis.
Gen 6 is concise but it really is not cryptic. One only needs to include the context of Gen 4 then it makes perfect sense. Without the context of Gen 4 people find the myth plausible. After exegeting the context of Gen 4 they ought to be able to abandon the myth they built by ignoring the context. This is how we discover our errors in hermeneutics. Once we realize that we made the mistake of ignoring the context of Gen 4 we should be able to correct our bad interpretations we created by speculation on who the sons of god were.