Proverbs 24:9

Learning From Your Father

⁸
He who plans to do evil
Will be called a schemer or deviser of evil.
⁹ 
The devising of folly is sin,
And the scoffer is repulsive to men. ¹⁰
If you are slack (careless) in the day of distress,
Your strength is limited.

Sin

Matthew 15:19

For out of the heart come evil thoughts and plans, murders, adulteries, sexual immoralities, thefts, false testimonies, slanders (verbal abuse, irreverent speech, blaspheming).

Acts 8:22

So repent of this wickedness of yours, and pray to the Lord that, if possible, this thought of your heart may be forgiven you.

Genesis 6:5

The Lord saw that the wickedness (depravity) of man was great on the earth, and that every imagination or intent of the thoughts of his heart were only evil continually.

Genesis 8:21

The Lord smelled the pleasing aroma [a soothing, satisfying scent] and the Lord said to Himself, “I will never again curse the ground because of man, for the intent (strong inclination, desire) of man’s heart is wicked from his youth; and I will never again destroy every living thing, as I have done.

Psalm 119:113

Samekh.
I hate those who are double-minded,
But I love and treasure Your law.

Proverbs 22:10

Drive out the scoffer, and contention will go away;
Even strife and dishonor will cease.

Proverbs 23:7

For as he thinks in his heart, so is he [in behavior—one who manipulates].
He says to you, “Eat and drink,”
Yet his heart is not with you [but it is begrudging the cost].

Proverbs 24:8

He who plans to do evil
Will be called a schemer or deviser of evil.

Proverbs 29:8

Scoffers set a city afire [by stirring up trouble],
But wise men turn away anger [and restore order with their good judgment].

Isaiah 55:7

Let the wicked leave (behind) his way
And the unrighteous man his thoughts;
And let him return to the Lord,
And He will have compassion (mercy) on him,
And to our God,
For He will abundantly pardon.

Jeremiah 4:14

O Jerusalem, wash your heart from wickedness,
That you may be saved.
How long will your wicked and immoral thoughts
Lodge within you?

Matthew 5:28

but I say to you that everyone who [so much as] looks at a woman with lust for her has already committed adultery with her in his heart.

Matthew 9:4

But Jesus, knowing their thoughts, said, “Why do you think evil in your hearts?

2 Corinthians 10:5

We are destroying sophisticated arguments and every exalted and proud thing that sets itself up against the [true] knowledge of God, and we are taking every thought and purpose captive to the obedience of Christ,