Yes, it is just as acceptable as a joke about any other subject is. However, bear in mind that some people don't always see jokes as jokes - just use your common sense and keep them unsaid when that kind of person is around.
Okay
Okay this has to be a joke but okay. 18.
Okay let's hear it... this better be good...
sacrilege
Tell her a joke!
Horrible indeed, but well beyond a joke considering the followers of this delusion.
Actually, the band is called Cool Joke. The song is called UNDO. But that's okay. Cool Joke performs the song UNDO in FullMetal Alchemist.
Perhaps god enjoys a joke.
put another lie on top of it to make it seem okay
No because its a sin for god
This refers to the fact that most Christians believe that God and the angels know the plan God has for your life before you are born. So they are, in this instance, sharing in a private joke that you don't know about.
No, you'd probably get sick if you did. Is that a joke?