John the Apostle

Of the four canonical gospels, John presents the highest Christology. It describes Jesus as the incarnation of the divine Logos, through which all things were made, and declares him to be God.

http://en.wikipedia.org/wiki/Gospel_of_John

In the beginning the Word already existed. The Word was with God, and the Word was God.

http://bible.cc/john/1-1.htm