The Bible's basic structure revealed in John 1:1

 

The 17 Greek words comprising John 1:1 total 3627, or 39x93

Since 39 = (66 - 27), and 93 = (66 + 27), it follows that 3627 = 66^2 - 27^2

This is represented by the area EBCDGF(coloured purple)

The sides of this figure are 66, 39 and 27

and thus register the total number of books in the Bible, and in each of the Testaments