What does the Bible say about Christ as the light of salvation?

Christ is described as the Light of the world in John 8:12, where He proclaims, 'He that followeth me shall not walk in darkness, but shall have the light of life.' This metaphor signifies the illuminating effect of Christ in revealing truth, righteousness, and God's glory. Isaiah 49:6 affirms this role, stating that Christ is given as a light to the Gentiles, highlighting the universality of His salvation, reaching to the ends of the earth. Without Christ, we remain in darkness, but with Him, we gain understanding, hope, and the promise of eternal life.