Enoch - And I, Enoch, answered and said unto him: 'The Lord will do a new thing on the earth, and this I have already seen in a vision, and make known to thee that in the generation of my father Jared some of the angels of heaven transgressed the word of the Lord.

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.