17. Rejoice not when thy enemy falleth, and let not thy heart be glad when he stumbleth:
18. Lest the LORD see it, and it displease him, and he turn away his wrath from him.
19. Fret not thyself because of evil men, neither be thou envious at the wicked;
20. For there shall be no reward to the evil man; the candle of the wicked shall be extinguished.