- The Bible speaks way too often about our speech and the importance of watching our tongues to think there is no danger in the words that we use. A cursory read through the book of Proverbs will make this point abundantly clear.
- As Christians, we are to be different from the unbelievers around us. We are not to be different in a weird, kooky way, but there should definitely be some easily discernible difference. 1 Peter 1:16 (quoting Leviticus 20:26) gives the command that there should be something unique, something holy, about us because the God we serve is holy.
- There is no place to have one sort of speech for this group and another sort of speech for another group. This is nothing more than hypocrisy. One of the individuals in the conversation said that it was normal practice to have one type of talk for one group and another type of talk for another. Just because something is done every day doesn't make it right. That is nothing more than pragmatism. James 3:10 says that we should not have two types of talk coming from the same mouth.
- If the world can understand that certain words are considered inappropriate, Christians should definitely grasp that fact. I understand that words have societal meanings where something that is offensive in our culture may not be offensive elsewhere. However, because we live in a particular culture and that culture has deemed certain words offensive, it is best for a Christian not to use them. Movies are often given the ratings that they are because of the language. Music is labeled "Explicit" because of the language that is contained in the lyrics. If unbelievers can understand that there are words that should not be used, why is it that Christians would want to use them?
- It is impossible to cuss to the glory of God. In both 1 Corinthians and Colossians there are admonishments to do every thing to the glory of God. Colossians 3:17 is particularly clear that every word should be to the glory of God. I don't think that an individual can drop the F-bomb and believe that it is glorifying to God.
Let no corrupting talk come out of your mouths, but only such as is good for building up, as fits the occasion, that it may give grace to those who hear. (Ephesians 4:29)
If you are interested in a different take on this topic (I agree with some points and definitely disagree with others), you should go here.