How do we know that Jesus Christ is the Light of the World?

John 1:5 states, 'The light shines in the darkness, and the darkness has not overcome it.' This presents Jesus as the ultimate light of truth amid the darkness of sin and ignorance. Throughout the New Testament, Christ is repeatedly referred to as the Light—both in His nature and mission. He reveals God's righteousness and exposes human sinfulness, prompting individuals to respond to His light either with acceptance or rejection. Historical and theological reflection in the Reformed tradition supports the understanding of Jesus as the light that draws individuals to faith, illuminating their need for a Savior and leading them from darkness to light. His coming was the fulfillment of God's promise, providing hope and salvation for His chosen people.