rappers, comedians and even some singers praying to God before going in front of a huge crowd and saying whatever they like, and succeed, and get lots of fame and money, how?
Well, not everyone is so sensitive to language. Not everyone believes that the use of profanity is wrong as they are just words and people should quit being such babies. Also, not everyone believes in the same God you do. Your definition of "foul language" is not the same as someone else's.
My opinion is that unless you are using profanity towards someone there is nothing wrong with it. Now, racist terms I classify as something different. They represent hatred toward particular groups of people, but if those people are not offended by the words themselves then there isn't anything wrong with them.
As far as your standard four letter words go people need to get over it.