Ephesians 4:29 -"Do not let any unwholesome talk come out of your mouths, but only what is helpful for building others up according to their needs, that it may benefit those who listen." What if the only things that came out of our mouths were prayers, encouragment, understanding, godly advice, pure things, etc.. not sarcasm, bad jokes, gossip, worthless talk..
"For I am convinced that neither death nor life, demons nor angels, neither the present nor the future, nor any powers, neither hight nor depth, nor anything else in all creation, will be able to separate us from the love of God that is in Christ Jesus our Lord" - Romans 8:38-39