Henotheism in the Hebrew Bible.

[Huggy Bear]

So we're Just going to resort to bad faith arguments?  It clearly states in the vary first verse...

1 This is the book of the generations of Adam. In the day that God created man, in the likeness of God made he him;
2 Male and female created he them; and blessed them, and called their name Adam, in the day when they were created.
3 And Adam lived an hundred and thirty years, and begat a son in his own likeness, and after his image; and called his name Seth:

The reason why Cain would be included is because the genealogy is traced through the firstborn son, which Cain was, yet he isn't included in Adam's genealogy.

‘Generations’ is not the same as ‘genealogy’. The former is who is descended from you, the latter is who you’re descended from (if it was Adam’s genealogy, it would simply read ‘God’).

It’s intended to show Noah’s descent from Adam, through Seth. Since Cain wasn’t Noah’s direct ancestor, it wouldn’t make sense to mention Cain. Nothing to do with snake DNA.

Boru

So now were attempting to argue semantics?
https://www.biblestudytools.com/dictionary/genealogy/

Genealogy. [N]

In Hebrew the term for genealogy or pedigree is "the book of the generations;"

The 'generations' of Noah mentions ALL of his sons, and the 'generations' of Noah son mentions ALL of their sons, yet the 'generations' of Adam leave out Cain.

Genesis 6
9 These are the generations of Noah: Noah was a just man and perfect in his generations, and Noah walked with God.

10 And Noah begat three sons, Shem, Ham, and Japheth.

Genesis 10
1 Now these are the generations of the sons of Noah, Shem, Ham, and Japheth: and unto them were sons born after the flood.

2 The sons of Japheth; Gomer, and Magog, and Madai, and Javan, and Tubal, and Meshech, and Tiras.

6 And the sons of Ham; Cush, and Mizraim, and Phut, and Canaan.

22 The children of Shem; Elam, and Asshur, and Arphaxad, and Lud, and Aram.