23 Burning lips and a wicked heart are like a potsherd covered with silver dross.
Proverbs 26:23 Cross References - Webster
2 Samuel 20:9-10
9 And Joab said to Amasa, Art thou in health, my brother? And Joab took Amasa by the beard with the right hand to kiss him.
10 But Amasa took no heed to the sword that was in Joab's hand: so he smote him in the fifth rib, and shed out his bowels to the ground, and struck him not again; and he died. So Joab and Abishai his brother pursued after Sheba the son of Bichri.
Proverbs 10:18
18 He that hideth hatred with lying lips, and he that uttereth a slander, is a fool.
Proverbs 25:4
4 Take away the dross from the silver, and there shall come forth a vessel for the finer.
Ezekiel 33:31
31 And they come to thee as the people come, and they sit before thee as my people, and they hear thy words, but they will not do them: for with their mouth they show much love, but their heart goeth after their covetousness.
Matthew 23:27
27 Woe to you, scribes and Pharisees, hypocrites! for ye are like whitened sepulchers, which indeed appear beautiful outward, but are within full of dead men's bones, and of all uncleanness.
Luke 11:39
39 And the Lord said to him, Now do ye Pharisees make clean the outside of the cup and the platter; but your inward part is full of ravening and wickedness.