Enoch - And those seven holy ones brought me and placed me on the earth before the door of my house, and said to me: 'Declare everything to thy son Methuselah, and show to all thy children that no flesh is righteous in the sight of the Lord, for He is their Creator.

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.