That's why there was the Flood, to kill the satanic seed meant to mess and prevent the blood line of Christ and start all over.That “school of thought” you're describing — the idea that there were two separate human lines in Genesis, and that the “sons of God” were just the descendants of Seth — is a post-biblical invention, not something rooted in the ancient worldview or supported by the actual language of Scripture. It was crafted centuries after Christ, largely to neutralize the explosive supernatural truth of what Genesis 6 really records. And the truth is: the “sons of God” in Genesis 6:2 were not humans. They were angelic beings — the Watchers — who rebelled against God, descended to earth, and took human women as wives, not out of love or affection, but through domination and lust. From these unnatural unions came the Nephilim: hybrid giants and genetic monstrosities who defiled the earth, ravaged creation, and corrupted mankind so completely that God was left with no choice but to wipe the slate clean.
For what it’s worth, I’ve completed a doctoral thesis on this subject.
The phrase “sons of God” in Hebrew — bene ha’elohim — is used consistently in the Old Testament to describe divine beings, not humans. You see it in Job 1:6 and Job 38:7, where it clearly refers to angelic entities in the presence of God. There is no grammatical or contextual reason to suddenly reinterpret it as referring to mortal men in Genesis 6 — unless you're intentionally trying to erase the supernatural from the text.
And that’s exactly what happened.
The Book of Enoch (1 Enoch), a deeply respected Jewish text that predates Christ and was even quoted directly in Jude 1:14–15, spells this out in detail. It names the 200 fallen angels who made a pact to corrupt humanity—led by Semyaza, the chief of the rebellion, and Azazel, whom many rabbinical scholars identify as Satan’s true name. These Watchers descended on Mount Hermon and fathered monstrous hybrid offspring: the Nephilim. These beings weren’t myths — they were real. They devoured the land, taught forbidden knowledge to mankind, and unleashed chaos across creation. When the Flood wiped them out, their disembodied spirits — neither fully human nor fully angel — became what we now call demons (1 Enoch 15:8–12). This is why demons crave bodies: they once had flesh, and they were never meant to exist in the first place.
But when Rome institutionalized the Church, it intentionally excluded the Book of Enoch from the biblical canon. Why? Because it was too dangerous. It explained too much. It showed where evil really came from — not just “sin,” but interdimensional rebellion that shattered the order of heaven and earth. So a new theory was created: the Sethite vs. Cainite lineage interpretation. It sounded safe, clean and rational. It stripped the divine conflict from Scripture and replaced it with moralistic allegory. And for centuries, people just nodded along, never realizing they had been robbed of the actual war behind the veil.
But Scripture, Enoch, the words of Jesus, and the writings of the early Church Fathers all agree: the “sons of God” were supernatural beings. The Nephilim were real. And the demons that still torment this world are the cursed remnants of an ancient rebellion that God judged with fire and flood. Don’t let Rome’s censorship or modern seminaries’ fear of the supernatural keep you from seeing the true cosmic backdrop of Genesis.
According to 1 Enoch 10:4–12 and 1 Enoch 18:12–16, the fallen angels — the Watchers — were spiritually bound by God beneath the earth, imprisoned under jagged rocks in utter darkness until the day of final judgment. They are not free. Their punishment was severe, sealed by the archangels at God’s command. But their offspring — the Nephilim — were not bound. When their monstrous bodies were destroyed in the Flood, their spirits were cursed to wander the earth. These became the demons — disembodied, restless, and vicious. Unlike their angelic fathers, they were born of both heaven and earth but belong to neither. As 1 Enoch 15:8–12 makes clear, they now roam the world as unclean spirits, corrupting, oppressing, and deceiving mankind — the lingering echo of a rebellion that once tore open the sky.
And believe me when I say — what you’ve just read barely scratches the surface. A full explanation of everything involved would easily span ten entire pages or more.
Even Paul believed the Enoch interpretation of Gen 6.
1 Cor 11:10 That is why a wife ought to have a symbol of authority on her head, because of the angels.
Out of the blue, no context.