But if our gospel be hid, it is hid to them that are lost: In whom the god of this world hath blinded the minds of them which believe not, lest the light of the glorious gospel of Christ, who is the image of God, should shine unto them. ~ 2 Corinthians 4:3-4 KJV

Then spake Jesus again unto them, saying, I am the light of the world: he that followeth me shall not walk in darkness, but shall have the light of life. ~ John 8:12 KJV

(Jesus speaking) Ye are the light of the world. A city that is set on an hill cannot be hid. ~ Matthew 5:14 KJV