Proverbs tells us that “the mouth that speaks evil hates him” against whom it speaks. Faull asks someone who has nothing good to say about another what they did against the person they are deriding.
Anger, he says is often due to being no longer sure of oneself. Saul was a man who was “small in his own eyes.” He didn’t have a good opinion of himself and led to his desire for vengeance. David, by contrast, responded to an opportunity to avenge himself by saying “Am I not the King of Israel.” Jesus himself washed the feet of his followers because he “knew all things were delivered into his hand.”