I remember all the way back to my middle school days wondering how humanity could come from Adam and Eve. It seemed inevitable that either (1) Adam had to reproduce with some of his own daughters and/or (2) Adam’s sons and daughters reproduced amongst themselves. I always thought that it was a bit gross either way.

I was told that I need to read through the Book of Jubilees if I am interested in the Jewish worldview of the Second Temple period. I am glad that I have begun doing so, because it answers all my childhood questions about how Moses knew what happened at creation (see here), how the serpent talked (see here), and how the human race reproduced:

“And Cain took ’Âwân his sister to be his wife and she bare him Enoch ” (IV.9)

Gross now; essential then. Thank you Book of Jubilees!