Enoch - And Michael answered again, and said to Raphael: 'Who is he whose heart is not softened concerning it, and whose reins are not troubled by this word of judgement (that) has gone forth upon them because of those who have thus led them out?'

Notes

The book of Enoch is not part of the canonical scriptures (The Bible) we know today and we don't know how accurate it is.

Some belive while Enoch is not inspired by God that it still serves as a historical book on the time before the flood. It's also quoted in the New Testament in Jude 1:14-15.

Because of this I wanted to include this book for historical reasons.

I would recommend reading the Bible first and foremost as it should be your foundation. Then if you are intrested you can take a look at the book of Enoch.