Proverbs 6:18

A heart full of evil designs, feet which are quick in running after sin;

Genesis 6:5

And the Lord saw that the sin of man was great on the earth, and that all the thoughts of his heart were evil.

Proverbs 1:16

For their feet are running after evil, and they are quick to take a man's life.

Isaiah 59:7

Their feet go quickly to evil, and they take delight in the death of the upright; their thoughts are thoughts of sin; wasting and destruction are in their ways.

Romans 3:15

Their feet are quick in running after blood;

Psalm 36:4

He gives thought to evil on his bed; he takes a way which is not good; he is not a hater of evil.

Proverbs 24:8

He whose purposes are bad will be named a man of evil designs.

Jeremiah 4:14

O Jerusalem, make your heart clean from evil, so that you may have salvation. How long are evil purposes to have a resting-place in you?

Micah 2:1

A curse on the designers of evil, working on their beds! in the morning light they do it, because it is in their power.

Zechariah 8:17

Let no one have any evil thought in his heart against his neighbour; and have no love for false oaths: for all these things are hated by me, says the Lord.

Treasury of Scripture Knowledge

Summary

An heart that deviseth wicked imaginations, feet that be swift in running to mischief,

Bible References

Heart

Proverbs 24:8
He whose purposes are bad will be named a man of evil designs.
Genesis 6:5
And the Lord saw that the sin of man was great on the earth, and that all the thoughts of his heart were evil.
Psalm 36:4
He gives thought to evil on his bed; he takes a way which is not good; he is not a hater of evil.
Jeremiah 4:14
O Jerusalem, make your heart clean from evil, so that you may have salvation. How long are evil purposes to have a resting-place in you?
Micah 2:1
A curse on the designers of evil, working on their beds! in the morning light they do it, because it is in their power.
Zechariah 8:17
Let no one have any evil thought in his heart against his neighbour; and have no love for false oaths: for all these things are hated by me, says the Lord.

Feet

Proverbs 1:16
For their feet are running after evil, and they are quick to take a man's life.
Isaiah 59:7
Their feet go quickly to evil, and they take delight in the death of the upright; their thoughts are thoughts of sin; wasting and destruction are in their ways.
Romans 3:15
Their feet are quick in running after blood;

General references

Proverbs 1:16
For their feet are running after evil, and they are quick to take a man's life.
Proverbs 24:8
He whose purposes are bad will be named a man of evil designs.
Romans 3:15
Their feet are quick in running after blood;

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain