Your words can also be very weak. When you say words in an evil way, you are saying weak words, as far as the Spirit and the Kingdom is concerned. When you cuss or say these cuss-like words, the demons will hear. When people use a certain word as a swear word, over and over again, that word becomes known as a cuss word, or what is known in this age as a swear word. Demons memorize these words, (some are even their names,) for these words call them to the person who is speaking them. (This is why it is less painful to hear them over the television set, than when a friend says them.) When one cusses, they are sinning and calling that demon into them. Then once inside of you, demons can easily influence you to sin more. The swearing gives the demon a doorway to hit you with more sin, so then it can eventually take you. If you say such a word in a non-evil/not with evil intent, through you are not cursing, the demons will still listen and come, but they can not enter into you. No doorway or opening was made, so they do not have a free way to attack you.