Psalm 5:9

For there is no certainty in their mouth; their inward part is perversion, their throat is an open sepulchre; they flatter with their tongue.

Romans 3:13

their throat is an open sepulchre; with their tongues they have used deceit; asps' poison is under their lips:

Psalm 62:4

They only consult to thrust him down from his excellency; they delight in lies; they bless with their mouth, but in their inward part they curse. Selah.

Psalm 52:2

Thy tongue deviseth mischievous things, like a sharp razor, practising deceit.

Luke 11:44

Woe unto you, for ye are as the sepulchres which appear not, and the men walking over them do not know it.

Job 32:21-22

Let me not, I pray you, accept any man's person; neither will I give flattery to man.

Psalm 12:2-3

They speak falsehood every one with his neighbour: with flattering lip, with a double heart, do they speak.

Psalm 36:1-4

{To the chief Musician. A Psalm of the servant of Jehovah; of David.} The transgression of the wicked uttereth within my heart, There is no fear of God before his eyes.

Psalm 51:6

Behold, thou wilt have truth in the inward parts; and in the hidden part thou wilt make me to know wisdom.

Psalm 58:2-3

Yea, in heart ye work wickedness; ye weigh out the violence of your hands in the earth.

Psalm 62:9

Men of low degree are only vanity; men of high degree, a lie: laid in the balance, they go up together lighter than vanity.

Psalm 64:6

They devise iniquities: We have it ready, the plan is diligently sought out. And each one's inward thought and heart is deep.

Psalm 111:1-3

Hallelujah! I will celebrate Jehovah with my whole heart, in the council of the upright, and in the assembly.

Proverbs 29:5

A man that flattereth his neighbour spreadeth a net for his steps.

Jeremiah 4:14

Wash thy heart, Jerusalem, from wickedness, that thou mayest be saved. How long shall thy vain thoughts lodge within thee?

Jeremiah 9:3-6

And they bend their tongue, their bow of falsehood, and not for fidelity are they valiant in the land; for they proceed from evil to evil, and they know not me, saith Jehovah.

Jeremiah 17:9

The heart is deceitful above all things, and incurable; who can know it?

Micah 6:12

For her rich men are full of violence, and her inhabitants speak lies, and their tongue is deceitful in their mouth.

Mark 7:21-22

For from within, out of the heart of men, go forth evil thoughts, adulteries, fornications, murders,

Luke 11:39

But the Lord said to him, Now do ye Pharisees cleanse the outside of the cup and of the dish, but your inward parts are full of plunder and wickedness.

Romans 1:29-31

being filled with all unrighteousness, wickedness, covetousness, malice; full of envy, murder, strife, deceit, evil dispositions; whisperers,

1 Thessalonians 2:5

For we have not at any time been among you with flattering discourse, even as ye know, nor with a pretext for covetousness, God is witness;

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
Behold, thou wilt have truth in the inward parts; and in the hidden part thou wilt make me to know wisdom.
Psalm 58:2
Yea, in heart ye work wickedness; ye weigh out the violence of your hands in the earth.
Psalm 62:4
They only consult to thrust him down from his excellency; they delight in lies; they bless with their mouth, but in their inward part they curse. Selah.
Jeremiah 4:14
Wash thy heart, Jerusalem, from wickedness, that thou mayest be saved. How long shall thy vain thoughts lodge within thee?
Jeremiah 17:9
The heart is deceitful above all things, and incurable; who can know it?
Mark 7:21
For from within, out of the heart of men, go forth evil thoughts, adulteries, fornications, murders,
Luke 11:39
But the Lord said to him, Now do ye Pharisees cleanse the outside of the cup and of the dish, but your inward parts are full of plunder and wickedness.

Throat

Luke 11:44
Woe unto you, for ye are as the sepulchres which appear not, and the men walking over them do not know it.
Romans 3:13
their throat is an open sepulchre; with their tongues they have used deceit; asps' poison is under their lips:

They

Psalm 12:2
They speak falsehood every one with his neighbour: with flattering lip, with a double heart, do they speak.
Job 32:21
Let me not, I pray you, accept any man's person; neither will I give flattery to man.
Proverbs 29:5
A man that flattereth his neighbour spreadeth a net for his steps.
1 Thessalonians 2:5
For we have not at any time been among you with flattering discourse, even as ye know, nor with a pretext for covetousness, God is witness;

General references

Jeremiah 5:16
Their quiver is as an open sepulchre; they are all mighty men.