You know, if you want to keep your language "pure" in honor your faith that is fine, but don't try to bully anyone else into falling in with your line.
When I am standing in front of God Almighty, He isn't going to be looking at me. Christ will be standing between us the sacrifice for anything, ANYTHING, ANYTHING, I might have said or done in this life. What does the Bible say? "As far as the east is from the west is how far my sins have been put away".
Yes, we should strive for perfection, but the idle words that lead us in the opposite direction are described as gossip! The apostle Peter is described as using some "rough" language, but it wasn't the language that he was chatised for, but the attitude!
Do you know what the Bible says will distinguish a Christian from the world? It's not language usage. Hmmm, maybe I should wait to see if anyone really knows since that one quality is often missing from the pages of the BB. I wonder how long it will take before someone comes up with the correct answer.