Proverbs 26:23

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

Luke 11:39

And the Lord said unto him, Now do ye Pharisees make clean the outside of the cup and the platter; but your inward part is full of ravening and wickedness.

Luke 22:47-48

And while he yet spoke, behold a multitude, and he that was called Judas, one of the twelve, went before them and drew near unto Jesus to kiss him.

2 Samuel 20:9-10

And Joab said to Amasa, Art thou in peace, my brother? And Joab took Amasa by the beard with the right hand to kiss him.

Proverbs 10:18

He that hides hatred has lying lips, and he that utters a slander, is a fool.

Proverbs 25:4

Take away the dross from the silver, and a vessel shall come forth for the finer.

Ezekiel 33:31

And they shall come unto thee as the people come, and they shall be before thee, my people, and they shall hear thy words, but they shall not do them; for with their mouth they flatter, but their heart goes after their covetousness.

Matthew 23:27

Woe unto you, scribes and Pharisees, hypocrites! for ye are like unto whitewashed sepulchres, who indeed appear beautiful outside, but inside are full of dead men's bones and of all uncleanness.

Treasury of Scripture Knowledge

Summary

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

Proverbs 10:18
He that hides hatred has lying lips, and he that utters a slander, is a fool.
2 Samuel 20:9
And Joab said to Amasa, Art thou in peace, my brother? And Joab took Amasa by the beard with the right hand to kiss him.
Ezekiel 33:31
And they shall come unto thee as the people come, and they shall be before thee, my people, and they shall hear thy words, but they shall not do them; for with their mouth they flatter, but their heart goes after their covetousness.
Luke 22:47
And while he yet spoke, behold a multitude, and he that was called Judas, one of the twelve, went before them and drew near unto Jesus to kiss him.