17. Rejoice not when your enemy falls, and let not your heart be glad when he stumbles:
18. Lest the LORD sees it, and it displeases him, and he turns away his wrath from him.
19. Fret not yourself because of evil men, neither be you envious at the wicked;
20. For there shall be no reward to the evil man; the lamp of the wicked shall be put out.