Serpent seed of Satan theorists claim that an accurate reading of Genesis 4:1 proves that the Bible is telling us that Cain is Satan’s son since Genesis 3 tells the story of Satan having sex with Eve.
As a pop-level representative of this view Zen Garcia claims that the original reading of that verse is, “And Adam knew Hava his wife, who had desired the Angel; and she conceived, and bare Kain; and she said, I have acquired a man, the Angel of the Lord. And she added to bear from her husband Adam his twin, even Habel.”