Treasury of Scripture Knowledge
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
He who hides hatred is of lying lips. And he who utters a slander is a fool.
2 Samuel 20:9
And Joab said to Amasa, Is it well with thee, my brother? And Joab took Amasa by the beard with his right hand to kiss him.
And they come to thee as the people come, and they sit before thee as my people. And they hear thy words, but do not do them. For with their mouth they show much love, but their heart goes after their gain.
While he yet spoke, behold, a multitude, and the man called Judas, one of the twelve, went before them. And he came near to Jesus to kiss him.