Enoch - And I saw how they are weighed in a righteous balance according to their proportions of light: (I saw) the width of their spaces and the day of their appearing, and how their revolution produces lightning: and (I saw) their revolution according to the number of the angels, and (how) they keep faith with each other.

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.