You know when you know you're right and you think the other person's an idiot, and you call them that?
Well, I don't think Jesus ever talked to the Pharisees in anger. He didn't call them idiots. No, he spoke the truth, and he condemned, which itself is a process of evaluating, considering, and judging. So Jesus seemed like a man who was always aware of what he was saying while keeping it classy.
There was no vulgarity in his language. At least not that we know.
So it should be like that. If you are ignorant and vulgar, just speak with conviction, as strong as possible-not as loud as possible- as much as you can. Make yourself heard and hopefully someone will correct you. If you are not vulgar, don't let it be known that you are just from the way you speak. It's unbecoming.
Also, a good thing to remember is that ideas have a language of their own, so it's best to mind the type of language that comes out of your mouth.
