Following excerpt is adapted from the book Wonders of Numbers, by Clifford A. Pickover (ISBN: 0-19-515799-0).
Consider the first 3 verses of Genesis:

1. In the beginning God created the heaven and the Earth.
2. And the earth was without form, and void; and darkness
   was upon the face of the deep. And the Spirit of God
   moved upon the face of the waters.
3. And God said, Let there be light: and there was light.

Select any of the 10 words in the first verse.
Count the number of letters in the chosen word and call this number n₁.
Then go the word that is n₁ words ahead. (e.g. if you picked the first the, go to created).
Now count the number of letters in this new word - call it n₂ - then jump ahead another n₂ words.
Continue until your chain of words enters the third verse of Genesis.
Regardless of what word you choose first, the final word will be God.

Explanation

This phenomenon is the result of the Kruskal count, a mathematical principle first noted by the mathematician Martin Kruskal in the 1970's:

When the total number of words in a text is significantly greater than the number of letters in the longest word, it is likely that any 2 arbitrary started word chains will intersect at a keyword. After that intersection point, the chains become identical.
As the text lengthens, the likelihood of intersection increases.