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 that covereth hatred hath lying lips, and he that sendeth forth a slander is a fool.
2 Samuel 20:9
And Joab said to Amasa, Art thou well, my brother? And Joab took Amasa by the beard with the right hand to kiss him.
And they come unto thee as a people cometh, and they sit before thee as my people, and they hear thy words, but they do them not; for with their mouth they shew much love, but their heart goeth after their dishonest gain.
As he was yet speaking, behold, a crowd, and he that was called Judas, one of the twelve, went on before them, and drew near to Jesus to kiss him.