What does the Bible say about Jesus being the light?

In the Gospel of John, Jesus proclaims, 'I am the light of the world' (John 8:12), indicating that He alone illuminates who God is and the condition of humanity. As the light, He exposes our sinfulness and provides the means for salvation. John 1:4 states that 'in Him was life, and the life was the light of men,' underscoring that true life and understanding come through Him alone. In essence, Christ as the light is foundational for recognizing both God's holiness and our need for grace.