Luke 11:35

See, therefore, that the light which is in you be not darkness.

John 7:48-49

Has any one of the rulers believed on him, or of the Pharisees?

John 9:39-41

And Jesus said, I came into this world for judgment, that those not seeing may see, and those seeing become blind.

Romans 1:22

Saying that they were wise they became foolish,

Romans 2:19-23

and believe yourself to be a guide of the blind, a light of those in darkness,

1 Corinthians 1:19-21

For it is written, I will destroy the wisdom of the wise, and will bring to nothing the understanding of the intelligent.

1 Corinthians 3:18-20

Let no one deceive himself; if any one seems to be wise among you in this life, let him be a fool, that he may be wise.

James 3:13-17

What wise and intelligent man is there among you? Let him show his works by good conduct, in the meekness of wisdom.

2 Peter 1:9

for a man that is without these is blind, not seeing to a distance, and has forgotten the purification from his former errors.

2 Peter 2:18

For speaking extravagant words of vanity, they entice with carnal desires of lewdness those scarcely escaped from them, those living in error,

Revelation 3:17

For you say, I am rich and have become rich and have need of nothing, and know not that you are miserable, and pitiable, and poor, and blind, and naked.

Treasury of Scripture Knowledge

Summary

Take heed therefore that the light which is in thee be not darkness.

Bible References

General references

John 7:48
Has any one of the rulers believed on him, or of the Pharisees?
John 9:39
And Jesus said, I came into this world for judgment, that those not seeing may see, and those seeing become blind.
Romans 1:22
Saying that they were wise they became foolish,
Romans 2:19
and believe yourself to be a guide of the blind, a light of those in darkness,
1 Corinthians 1:19
For it is written, I will destroy the wisdom of the wise, and will bring to nothing the understanding of the intelligent.
1 Corinthians 3:18
Let no one deceive himself; if any one seems to be wise among you in this life, let him be a fool, that he may be wise.
James 3:13
What wise and intelligent man is there among you? Let him show his works by good conduct, in the meekness of wisdom.
2 Peter 1:9
for a man that is without these is blind, not seeing to a distance, and has forgotten the purification from his former errors.
2 Peter 2:18
For speaking extravagant words of vanity, they entice with carnal desires of lewdness those scarcely escaped from them, those living in error,
Revelation 3:17
For you say, I am rich and have become rich and have need of nothing, and know not that you are miserable, and pitiable, and poor, and blind, and naked.