2 Corinthians 11:14

11:14 And no wonder, for even Satan disguises himself as an angel of light.

2 Corinthians 6:14

Unequal Partners

6:14 Do not become partners with those who do not believe, for what partnership is there between righteousness and lawlessness, or what fellowship does light have with darkness?

2 Corinthians 4:6

4:6 For God, who said “Let light shine out of darkness,” is the one who shined in our hearts to give us the light of the glorious knowledge of God in the face of Christ.