And the fat of the beast that dieth of itself
 Of any disease, and is not regularly killed: 
 and the fat of that which is torn with beasts;
 with wild beasts: 
 may be used in any other use;
 as in medicine, for plasters, or for making candles, or for greasing of anything to make it smooth and pliable, or the like: 
 but ye shall in no wise eat of it;
 such carcasses themselves were not to be eaten of, and one would think their fat in course must be unlawful; but however, to prevent the doing of it, this particular law was given, and those that broke this were doubly guilty, as the Jews observe F13; once in eating things that died of themselves, or were torn with beasts, and again by eating the fat of them.