Proverbs 26:23

Like a [common] clay vessel covered with the silver dross [making it appear silver when it has no real value]
Are burning lips [murmuring manipulative words] and a wicked heart.

Luke 11:39

But the Lord said to him, “Now you Pharisees clean the outside of the cup and plate [as required by tradition]; but inside you are full of greed and wickedness.

Luke 22:47-48

While He was still speaking, a crowd came, and the man called Judas, one of the twelve [disciples], was leading the way for them. He approached Jesus to kiss Him.

2 Samuel 20:9-10

Joab said to Amasa, “Is it going well with you, my brother?” And with his right hand Joab took hold of Amasa by the beard [as if] to kiss him [in greeting].

Proverbs 10:18

He who hides hatred has lying lips,
And he who spreads slander is a fool.

Proverbs 25:4

Take away the dross from the silver,
And there comes out [the pure metal for] a vessel for the silversmith [to shape].

They come to you as people come, and they sit before you as My people, and they hear your words, but they do not practice them; for with their mouth they express loving devotion, but their heart goes after their (unlawful) gain.

Matthew 23:27

“Woe to you, [self-righteous] scribes and Pharisees, hypocrites! For you are like whitewashed tombs which look beautiful on the outside, but inside are full of dead men’s bones and everything unclean.

Treasury of Scripture Knowledge

Summary

Proverbs 26:23

Burning lips and a wicked heart are like a potsherd covered with silver dross.

That is, ardent professions of friendship from a wicked heart, however smooth, shining, and splendid they may appear, are like a vile vessel covered over with base metal

Bible References

That is, ardent professions of friendship from a wicked heart, however smooth, shining, and splendid they may appear, are like a vile vessel covered over with base metal

He who hides hatred has lying lips,
And he who spreads slander is a fool.

Joab said to Amasa, “Is it going well with you, my brother?” And with his right hand Joab took hold of Amasa by the beard [as if] to kiss him [in greeting].

While He was still speaking, a crowd came, and the man called Judas, one of the twelve [disciples], was leading the way for them. He approached Jesus to kiss Him.