Isaiah 9 is a passage from the Book of Isaiah that is often cited and celebrated during the Christmas season for its prophetic message about the coming Messiah. The passage begins with a description of a region in ancient Israel, possibly Galilee, that had experienced darkness and distress. However, a promise of hope emerges, proclaiming that the people who walked in darkness would see a great light. This light is seen as a metaphor for the arrival of a divine savior.