Romans 1:22
They called themselves wise, but they have turned into fools,
1 Corinthians 8:4
As to eating things, then, that have been offered to idols, we all know that no idol has any real existence, and that there is no God but one.
2 Corinthians 4:4
In their case, the god of this world has blinded the minds of the unbelievers, to keep the light of the good news of the glorious Christ, the likeness of God, from dawning upon them.
Ephesians 4:18
They are estranged from the life of God because of the ignorance that exists among them and their obstinacy of heart,
Ephesians 5:8
For once you were sheer darkness, but now, as Christians, you are light itself. You must live like children of light,