Proverbs 26:28

A lying tongue hateth those that are injured by it, and a flattering mouth worketh ruin.

Proverbs 29:5

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

Proverbs 6:24

to keep thee from the evil woman, from the flattery of the tongue of a strange woman.

Proverbs 7:5

that they may keep thee from the strange woman, from the stranger who flattereth with her words.

Proverbs 7:21-23

With her much enticement she beguiled him; with the smoothness of her lips she constrained him.

Luke 20:20-21

And having watched him, they sent out suborned persons, pretending to be just men, that they might take hold of him in his language, so that they might deliver him up to the power and authority of the governor.

John 8:40

but now ye seek to kill me, a man who has spoken the truth to you, which I have heard from God: this did not Abraham.

John 8:44-49

Ye are of the devil, as your father, and ye desire to do the lusts of your father. He was a murderer from the beginning, and has not stood in the truth, because there is no truth in him. When he speaks falsehood, he speaks of what is his own; for he is a liar and its father:

John 10:32-33

Jesus answered them, Many good works have I shewn you of my Father; for which work of them do ye stone me?

John 15:22-24

If I had not come and spoken to them, they had not had sin; but now they have no excuse for their sin.

Treasury of Scripture Knowledge

Summary

A lying tongue hateth those that are afflicted by it; and a flattering mouth worketh ruin.

Bible References

A flattering

Proverbs 6:24
to keep thee from the evil woman, from the flattery of the tongue of a strange woman.
Proverbs 7:5
that they may keep thee from the strange woman, from the stranger who flattereth with her words.
Proverbs 29:5
A man that flattereth his neighbour spreadeth a net for his steps.
Luke 20:20
And having watched him, they sent out suborned persons, pretending to be just men, that they might take hold of him in his language, so that they might deliver him up to the power and authority of the governor.

General references

Judges 16:6
And Deli'lah said to Samson, "Please tell me wherein your great strength lies, and how you might be bound, that one could subdue you."
1 Samuel 24:9
And David said to Saul, Why dost thou listen to words of men, saying, Behold, David seeks thy hurt?
Ezekiel 12:24
For there shall be no more any vain vision nor flattering divination in the midst of the house of Israel.