 It wasn't John who said it, it was somebody who Jesus met, who Jesus called. Verse 43, the day following, Jesus would go forth into Galilee and find a Philip and saith unto him, follow me. Now Philip was of Bethsaida, the city of Andrew and Peter. Philip, obviously his life was made different because he goes and he finds Nathanael. And saith unto him, we have found him of whom Moses and the law and the prophets did write, Jesus of Nazareth, the son of Joseph.