Gospel of John chapter 1: "My friend Jesus was not merely a great man and a brilliant teacher. Don’t talk about His birth as you would any other famous personality. Jesus was the Christ, the Son of the Living God. He was a real person, but He was God. I touched Him, ate with Him, talked with Him.
In his account of the birth of Jesus, it’s clear that John never got over the wonder of God coming to earth as a man or the purpose of it all: Think of it, the Son of God came to earth asking men and women to trust Him! You would expect God to come to earth making demands. Not Jesus. He came to earth offering life to all who would trust Him."
To John the Christmas story was the beginning of the greatest life ever lived, the greatest Person ever born, and the most trustworthy Friend a man or woman could have. To John, Jesus is a Person to trust.