Jn. 1:1 "In the beginning was the Word, and the Word was with God, and the Word was God."
Jn. 21:25 "Now there are also many other things that Jesus did. Were every one of them to be written, I suppose that the world itself could not contain the books that would be written.
Jesus has a title and that is the WORD. When a disciple records something that Jesus did, it is called His Word. There must be a very large amount of Words that Jesus spoke that never, in this life time be read. Perhaps when we go to heaven, we will hear:nod "the rest of the story."