Which birthday is celebrated by more than two billion people in 160 countries, and generates nearly $900 billion in annual revenue? You guessed it—Jesus’! Still, despite the uniqueness of Jesus’ birthday celebration, and though nine out of ten people celebrate Christmas as a cultural holiday, only one-third celebrate it as a spiritual holy day. They don’t yet realize that the real reason we celebrate this baby is because of who He was at His birth. John 1:14 reveals that God from eternity entered into humanity so that humanity could know God for all eternity. The difference between getting through Christmas and truly understanding it comes down to these three things.