A syringe can be used for heroine...or...for a vaccine or medicine. Things have no reasoning, no logic, no concept of good or evil (or concept of anything for that matter). How you use it is how it matters. Words can be used for good or for evil, even the same word used for both. Like it says about food, nothing that goes into you is unclean, but what comes out of you is what is clean or not. Nothing you use is good or evil unless YOU use it for good or evil intentions. Clothing, words, books, tv, internet, cars, knives, guns, stuffed animals, water heaters, rice, it's all nuetral, it's YOUR intent and actions (what comes out of you) that is clean or unclean.