Psalm 12:2

Everyone utters lies to his neighbor; with flattering lips and a double heart they speak.

Psalm 41:6

And when one comes to see me, he utters empty words, while his heart gathers iniquity; when he goes out, he tells it abroad.

Romans 16:18

For such persons do not serve our Lord Christ, but their own appetites, and by smooth talk and flattery they deceive the hearts of the naive.

Psalm 10:7

His mouth is filled with cursing and deceit and oppression; under his tongue are mischief and iniquity.

Jeremiah 9:8

Their tongue is a deadly arrow; it speaks deceitfully; with his mouth each speaks peace to his neighbor, but in his heart he plans an ambush for him.

1 Chronicles 12:33

Of Zebulun 50,000 seasoned troops, equipped for battle with all the weapons of war, to help David with singleness of purpose.

Psalm 5:9

For there is no truth in their mouth; their inmost self is destruction; their throat is an open grave; they flatter with their tongue.

Psalm 28:3

Do not drag me off with the wicked, with the workers of evil, who speak peace with their neighbors while evil is in their hearts.

Psalm 144:8

whose mouths speak lies and whose right hand is a right hand of falsehood.

James 1:8

he is a double-minded man, unstable in all his ways.

Psalm 36:3-4

The words of his mouth are trouble and deceit; he has ceased to act wisely and do good.

Psalm 38:12

Those who seek my life lay their snares; those who seek my hurt speak of ruin and meditate treachery all day long.

Psalm 52:1-4

Why do you boast of evil, O mighty man? The steadfast love of God endures all the day.

Psalm 55:21

His speech was smooth as butter, yet war was in his heart; his words were softer than oil, yet they were drawn swords.

Psalm 59:12

For the sin of their mouths, the words of their lips, let them be trapped in their pride. For the cursing and lies that they utter,

Psalm 62:4

They only plan to thrust him down from his high position. They take pleasure in falsehood. They bless with their mouths, but inwardly they curse. Selah

Psalm 144:11

Rescue me and deliver me from the hand of foreigners, whose mouths speak lies and whose right hand is a right hand of falsehood.

Proverbs 20:19

Whoever goes about slandering reveals secrets; therefore do not associate with a simple babbler.

Proverbs 29:5

A man who flatters his neighbor spreads a net for his feet.

Jeremiah 9:2-6

Oh that I had in the desert a travelers' lodging place, that I might leave my people and go away from them! For they are all adulterers, a company of treacherous men.

Ezekiel 12:24

For there shall be no more any false vision or flattering divination within the house of Israel.

1 Thessalonians 2:5

For we never came with words of flattery, as you know, nor with a pretext for greed--God is witness.

Treasury of Scripture Knowledge

Summary

They speak vanity every one with his neighbour: with flattering lips and with a double heart do they speak.

A double heart

Bible References

Flattering

Psalm 5:9
For there is no truth in their mouth; their inmost self is destruction; their throat is an open grave; they flatter with their tongue.
Psalm 28:3
Do not drag me off with the wicked, with the workers of evil, who speak peace with their neighbors while evil is in their hearts.
Psalm 62:4
They only plan to thrust him down from his high position. They take pleasure in falsehood. They bless with their mouths, but inwardly they curse. Selah
Proverbs 20:19
Whoever goes about slandering reveals secrets; therefore do not associate with a simple babbler.
Proverbs 29:5
A man who flatters his neighbor spreads a net for his feet.
Ezekiel 12:24
For there shall be no more any false vision or flattering divination within the house of Israel.
Romans 16:18
For such persons do not serve our Lord Christ, but their own appetites, and by smooth talk and flattery they deceive the hearts of the naive.
1 Thessalonians 2:5
For we never came with words of flattery, as you know, nor with a pretext for greed--God is witness.

A double heart

1 Chronicles 12:33
Of Zebulun 50,000 seasoned troops, equipped for battle with all the weapons of war, to help David with singleness of purpose.

General references

Genesis 29:19
Laban said, "It is better that I give her to you than that I should give her to any other man; stay with me."
Judges 16:6
So Delilah said to Samson, "Please tell me where your great strength lies, and how you might be bound, that one could subdue you."
Habakkuk 1:3
Why do you make me see iniquity, and why do you idly look at wrong? Destruction and violence are before me; strife and contention arise.
Acts 12:22
And the people were shouting, "The voice of a god, and not of a man!"

The Holy Bible, English Standard Version® copyright © 2001 by Crossway Bibles, a publishing ministry of Good News Publishers.