Matthew 15:19

For from the heart come evil reasonings, murders, adulteries, lewd actions, thefts, false testimonies, impious words.

Acts 8:22

Repent, there fore, of this your wickedness, and pray God, if perhaps the purpose of your heart may be forgiven you.

Matthew 5:28

But I say to you, Whoever looks upon a woman to cherish desire for her, has already committed adultery with her in his heart.

Matthew 9:4

And Jesus, perceiving their thoughts, said: "Why do evil thoughts arise in your hearts?

2 Corinthians 10:5

overthrowing reasonings and every high thing that exalts itself against the knowledge of God, and leading captive every thought to the obedience of the Christ,

Treasury of Scripture Knowledge

Summary

The thought of foolishness is sin: and the scorner is an abomination to men.

Bible References

Thought

Matthew 5:28
But I say to you, Whoever looks upon a woman to cherish desire for her, has already committed adultery with her in his heart.
Matthew 9:4
And Jesus, perceiving their thoughts, said: "Why do evil thoughts arise in your hearts?
Matthew 15:19
For from the heart come evil reasonings, murders, adulteries, lewd actions, thefts, false testimonies, impious words.
Acts 8:22
Repent, there fore, of this your wickedness, and pray God, if perhaps the purpose of your heart may be forgiven you.
2 Corinthians 10:5
overthrowing reasonings and every high thing that exalts itself against the knowledge of God, and leading captive every thought to the obedience of the Christ,