So can you kind of fill in the narrative before we talk about the philological aspects?

Sure.

The story of Cain and Abel can be found in chapter four of the Bible, the first book of the Bible, the Genesis.

And it follows the account of the creation of the world.

and the fall of man with the damnation of Adam and Eve from the garden of Eden.

We are told that Cain is the firstborn of Adam and Eve and Abel is his younger brother.

The one becomes a farmer and the other becomes a shepherd.

So what drew you to it originally?