As a mad man who casteth firebrands, arrows, and death,
As a mad (man), who casteth firebrands, arrows, and death, so (is) the man (that) deceiveth his neighbour, and saith, Am not I in sport? Compare 2 Peter 2:13, "Sporting themselves with their own deceivings." A lie in jest does mischief in earnest. Such Sport the believer feels is "not convenient" (Ephesians 5:4). It is the act of a "madman" playing with deadly implements, with the difference that the madman is not accountable; the jesting liar is (Proverbs 10:23). Much that the world calls 'play' is deadly mischief (2 Samuel 2:14).