Matt 15: 11 "Not that which goeth into the moth defileth a man; but that which cometh out of the mouth this defileth a man." Pres Nelson shared in conference a time in the operating room- making the decision never to hurl anything in anger- including words. Elder Holland gave a conference talk in 2007 "The tongue of Angels" In it he said "In this long eternal quest to be more like our Savior, may we try to be "perfect" men and women in at least this one way now- by offending not in word...by speaking with a new tongue, the tongue of angels."