Luke 11:39

But the Lord said unto him, ye pharisees clean the outside of the cup and of the platter, but your inward part is full of rapine and wickedness.

Luke 22:47-48

And while He was yet speaking, behold a multitude; and he that was called Judas, one of the twelve apostles, came before them, and drew near unto Jesus to kiss Him:

Matthew 23:27

Wo unto you scribes and pharisees, hypocrites; who are like whited sepulchres, which indeed appear beautiful without, but within are full of the bones of the dead, and all manner of filthiness;

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
And while He was yet speaking, behold a multitude; and he that was called Judas, one of the twelve apostles, came before them, and drew near unto Jesus to kiss Him: