Psalm 5:9

For no faith may be put in their words; their inner part is nothing but evil; their throat is like an open place for the dead; smooth are the words of their tongues.

Romans 3:13

Their throat is like an open place of death; with their tongues they have said what is not true: the poison of snakes is under their lips:

Psalm 62:4

Their only thought is to put him down from his place of honour; their delight is in deceit: blessing is in their mouths but cursing in their hearts. (Selah.)

Psalm 52:2

Purposing destruction, using deceit; your tongue is like a sharp blade.

Luke 11:44

A curse is on you! for you are like the resting-places of dead men, which are not seen, and men go walking over them without knowledge of it.

Job 32:21-22

Let me not give respect to any man, or give names of honour to any living.

Psalm 12:2-3

Everyone says false words to his neighbour: their tongues are smooth in their talk, and their hearts are full of deceit.

Psalm 36:1-4

The sin of the evil-doer says in his heart, There is no fear of the Lord before his eyes.

Psalm 51:6

Your desire is for what is true in the inner parts: in the secrets of my soul you will give me knowledge of wisdom.

Psalm 58:2-3

The purposes of your hearts are evil; your hands are full of cruel doings on the earth.

Psalm 62:9

Truly men of low birth are nothing, and men of high position are not what they seem; if they are put in the scales together they are less than a breath.

Psalm 64:6

Or make discovery of our secret purpose? The design is framed with care; and the inner thought of a man, and his heart, is deep.

Psalm 111:1-3

Let the Lord be praised. I will give praise to the Lord with all my heart, among the upright, and in the meeting of the people.

Proverbs 29:5

A man who says smooth things to his neighbour is stretching out a net for his steps.

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?

Jeremiah 9:3-6

Their tongues are bent like a bow to send out false words: they have become strong in the land, but not for good faith: they go on from evil to evil, and they have no knowledge of me, says the Lord.

Jeremiah 17:9

The heart is a twisted thing, not to be searched out by man: who is able to have knowledge of it?

Micah 6:12

For its men of wealth are cruel, and its people have said what is not true, and their tongue is false in their mouth.

Mark 7:21-22

Because from inside, from the heart of men, come evil thoughts and unclean pleasures,

Luke 11:39

And the Lord said to him, You Pharisees make the outside of the cup and the plate clean; but inside you are thieves and full of evil.

Romans 1:29-31

Being full of all wrongdoing, evil, desire for the goods of others, hate, envy, putting to death, fighting, deceit, cruel ways, evil talk, and false statements about others;

1 Thessalonians 2:5

For it is common knowledge among you that we never made use of smooth-sounding false words, and God is witness that at no time were we secretly desiring profit for ourselves,

Treasury of Scripture Knowledge

Summary

For there is no faithfulness in their mouth; their inward part is very wickedness; their throat is an open sepulchre; they flatter with their tongue.

General references

Bible References

Inward

Psalm 51:6
Your desire is for what is true in the inner parts: in the secrets of my soul you will give me knowledge of wisdom.
Psalm 58:2
The purposes of your hearts are evil; your hands are full of cruel doings on the earth.
Psalm 62:4
Their only thought is to put him down from his place of honour; their delight is in deceit: blessing is in their mouths but cursing in their hearts. (Selah.)
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?
Jeremiah 17:9
The heart is a twisted thing, not to be searched out by man: who is able to have knowledge of it?
Mark 7:21
Because from inside, from the heart of men, come evil thoughts and unclean pleasures,
Luke 11:39
And the Lord said to him, You Pharisees make the outside of the cup and the plate clean; but inside you are thieves and full of evil.

Throat

Luke 11:44
A curse is on you! for you are like the resting-places of dead men, which are not seen, and men go walking over them without knowledge of it.
Romans 3:13
Their throat is like an open place of death; with their tongues they have said what is not true: the poison of snakes is under their lips:

They

Psalm 12:2
Everyone says false words to his neighbour: their tongues are smooth in their talk, and their hearts are full of deceit.
Job 32:21
Let me not give respect to any man, or give names of honour to any living.
Proverbs 29:5
A man who says smooth things to his neighbour is stretching out a net for his steps.
1 Thessalonians 2:5
For it is common knowledge among you that we never made use of smooth-sounding false words, and God is witness that at no time were we secretly desiring profit for ourselves,

General references

Jeremiah 5:16
Their arrows give certain death, they are all men of war.

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