In him was life; and the life was the light of men. And the light shineth in darkness; and the darkness comprehended it not. — John 1:4-5 (KJV)

Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness? — 2 Corinthians 6:14 (KJV)

But ye are a chosen generation, a royal priesthood, an holy nation, a peculiar people; that ye should shew forth the praises of him who hath called you out of darkness into his marvellous light; — 1 Peter 2:9 (KJV)

Unto the upright there ariseth light in the darkness: he is gracious, and full of compassion, and righteous. — Psalm 112:4 (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)

But fornication, and all uncleanness, or covetousness, let it not be once named among you, as becometh saints; — Ephesians 5:3 (KJV)

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

Who hath delivered us from the power of darkness, and hath translated us into the kingdom of his dear Son: — Colossians 1:13 (KJV)

This thou hast seen, O LORD: keep not silence: O Lord, be not far from me. Stir up thyself, and awake to my judgment, even unto my cause, my God and my Lord. — Psalm 35:22-23 (KJV)

And they that be wise shall shine as the brightness of the firmament; and they that turn many to righteousness as the stars for ever and ever. —Daniel 12:3 (KJV)