The first part of Deuteronomy is historical. The second part is legislative. There is still much that can be learned from it.

This idea, whether it comes from the religious or not, that the entire 44+ books of the Bible are some kind of “Do everything this collection of documents says to the exact letter or else hell or something” instruction manual is one of the most ignorant and sadistic jokes of our time, and to reduce it to such is an act of intellectual dishonesty.