Luke 11:39

but the Lord said to him, "You Pharisees do clean the outside of the cup and the plate, but your inner life is filled with rapacity and malice.

Luke 22:47-48

While he was still speaking, there came a mob headed by the man called Judas, one of the twelve. He approached in order to kiss Jesus,

Matthew 23:27

Woe to you, you irreligious scribes and Pharisees! you are like tombs white-washed; they look comely on the outside, but inside they are full of dead men's bones and all manner of impurity.

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

Luke 22:47
While he was still speaking, there came a mob headed by the man called Judas, one of the twelve. He approached in order to kiss Jesus,