Psalm 12:2

Deception, speak they, every one with his neighbour, - with lips uttering smooth things - with a heart and a heart, do they speak.

Psalm 41:6

And, if he have come to see me, Falsehood, doth he speak, His own heart, gathereth iniquity to itself, he goeth forth, abroad he telleth it.

Romans 16:18

For, they who are such, unto our Lord Christ are not doing service, but unto their own belly, - and, through their smooth and flattering speech, deceive the hearts of the innocent.

Psalm 10:7

With cursing, his mouth is full, and with deceptions and oppression, Under his tongue, are trouble and mischief:

Jeremiah 9:8

A pointed arrow, is their tongue Deceit, hath it spoken, - With his mouth peace unto his neighbour, doth one speak, But within himself, he layeth his ambush.

1 Chronicles 12:33

Of Zebulun - such as were ready to go forth in host, expert for battle with all weapons of war, fifty thousand, - and for setting in array, not of two minds!

Psalm 5:9

For in his mouth is nothing worthy of trust, Their inward purpose, is engulphing ruin, - An opened sepulchre, is their throat, With their tongue, speak they smooth things.

Psalm 28:3

Do not drag me away - with the lawless, or with the workers of iniquity, - who speak peaceably with their neighbours, but, wrong, is in their heart.

Psalm 144:8

Whose mouth, hath spoken deceit, and, whose right hand, is a right hand of falsehood.

James 1:8

A two-souled man, unstable in all his ways.

Psalm 36:3-4

The words of his mouth, are iniquity and deceit, he hath left off to show discretion by doing well:

Psalm 38:12

Yea they who are seeking my life, have laid snares, and they who are asking my harm, have threatened engulfing ruin, And, deceitful things - all day long, do they mutter.

Psalm 52:1-4

Why dost thou boast thyself of wickedness, O mighty man? The lovingkindness of GOD, lasteth all the day.

Psalm 55:21

Smoother than curds, were the words of his mouth, But, war, was in his heart, - Softer his words than oil, Yet, they, were drawn swords!

Psalm 59:12

The sin of their mouth, The word of their lips, Let them then be captured in their pride, Both for the oath and for the deception they record.

Psalm 62:4

Surely, from his elevation, they have taken counsel to thrust him down, They accept falsehood, - With his mouth, they each of them bless, But, inwardly, they revile. Selah.

Psalm 144:11

Snatch me away and rescue me out of he hand of the sons of the alien, - whose mouth hath spoken deceit, and, whose right hand, is a right hand of falsehood: -

Proverbs 20:19

A revealer of secrets, is one who goeth about talebearing, therefore, with him who openeth his lips, shalt thou not have fellowship.

Proverbs 29:5

A man who flattereth his neighbour, spreadeth, a net, over his steps.

Jeremiah 9:2-6

Oh that I had in the wilderness, a wayfarers lodge, That I might leave my people, and go from them, - For they all, are Adulterers, An assemblage of traitors;

Ezekiel 12:24

For there shall no more be - Any vision of falsehood Or divination of deceit, In the midst of the house of Israel.

1 Thessalonians 2:5

For neither at any time were we found, using words of flattery, - even as ye know, nor 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 in his mouth is nothing worthy of trust, Their inward purpose, is engulphing ruin, - An opened sepulchre, is their throat, With their tongue, speak they smooth things.
Psalm 28:3
Do not drag me away - with the lawless, or with the workers of iniquity, - who speak peaceably with their neighbours, but, wrong, is in their heart.
Psalm 62:4
Surely, from his elevation, they have taken counsel to thrust him down, They accept falsehood, - With his mouth, they each of them bless, But, inwardly, they revile. Selah.
Proverbs 20:19
A revealer of secrets, is one who goeth about talebearing, therefore, with him who openeth his lips, shalt thou not have fellowship.
Proverbs 29:5
A man who flattereth his neighbour, spreadeth, a net, over his steps.
Ezekiel 12:24
For there shall no more be - Any vision of falsehood Or divination of deceit, In the midst of the house of Israel.
Romans 16:18
For, they who are such, unto our Lord Christ are not doing service, but unto their own belly, - and, through their smooth and flattering speech, deceive the hearts of the innocent.
1 Thessalonians 2:5
For neither at any time were we found, using words of flattery, - even as ye know, nor a pretext for greed - God, is witness!

A double heart

1 Chronicles 12:33
Of Zebulun - such as were ready to go forth in host, expert for battle with all weapons of war, fifty thousand, - and for setting in array, not of two minds!

General references

Genesis 29:19
And Laban said, Better that I give her to thee, than that I should give her to another man, - Abide with me!
Judges 16:6
So Delilah said unto Samson, Do tell me, I pray thee, wherein lieth thy great strength, - and wherewith thou mightest be bound, to humble thee.
Habakkuk 1:3
Wherefore shouldst thou let me see iniquity, and, wrong, shouldst let me behold, and, force and violence, be straight before me, - and there should have ever been someone who, contention and strife, would uphold?
Acts 12:22
And, the populace, began to shout - A god's, voice, and not, a man's!