On the subject of Hell and Salvation

[Belacqua]

The book you link us to indicates that this is wrong. The Torah was written centuries after the Bronze Age.

True enough, but it was based on oral mythology, which was much older..

A Jewish answer:

Dear Rabbi,
I believe that the "Five Books of Moses" comprise the Torah. How and when do we believe we received the Torah? Was it given to us directly from G
Dear Michael,
G-d gave the Torah to Moses and the Jewish people at Mount Sinai 3,316 years ago. This was seven weeks after the Exodus from Egypt, on the 6th day of the month Sivan, in the year 2448 of the Jewish calendar. On that day, G-d revealed Himself to the entire Jewish people (which included some 600,000 adult men, in addition to women, children and the aged) and declared to them the Ten Commandments. Afterwards, Moses ascended Mount Sinai where, for forty days, G-d taught him the entire Written and Oral Torah. Later, on Yom Kippur, Moses descended with the second tablets of the Ten Commandments and began to teach the people what he heard from G-d on Mount Sinai.

https://ohr.edu/1438

If you go by the literalists, I'm sure the dates will be old. Maybe in the Bronze Age. But if we go by historical scholarship that will be different, of course. 

According to the Wikipedia summary of the book that was linked to, there are various references in the Torah that indicate it was written later. Arameans, camels, etc. 

So either the book is wrong, or the Torah was written long after the Bronze Age. 

But we may be writing for rhetorical effect here, not trying to make accurate sentences.