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 who conceals hatred [has] lips of deceit, and he who utters slander--he is a fool.
2 Samuel 20:9
Then Joab said to Amasa, "Is it peace, O you my brother?" Then the right hand of Joab took hold of the beard of Amasa [as if] to kiss him.
Ezekiel 33:31
And they come to you {as people do}, and they sit {before you}, and my people hear your words, and they do not do them, for they [are] showing passion in their mouth, but their heart [is] going after ill-gotten gain.
Luke 22:47
[While] he was still speaking, behold, [there came] a crowd, and the one named Judas, one of the twelve, leading them. And he approached Jesus to kiss him.