How do we know that Jesus is the light of the world?

The validation of Jesus as the light of the world is founded upon scriptural prophecies and His miraculous works. In John 9, Jesus performs the miracle of healing a blind man, a profound embodiment of His statement in John 8:12 that He is the light of the world. The healing signifies both physical restoration and spiritual enlightenment, illustrating His ability to remove the blindness of sin. Furthermore, the prophetic texts from Isaiah, which refer to a light for the Gentiles, find their ultimate culmination in Christ. His claim of being the light also invites believers to experience transformation and illumination as they put their faith in Him, revealing God's grace and truth as seen through His life and work.