The Gods in Heaven felt it had gone on too long, the different religions on earth believing their god to be the only true 'God', so they all decided to thrash it out at a meeting, to at last find out who really was the one and only true God.
The Christians' God asked the Muslims God "Do you believe you are the true God?"
"Of course I am the true God." he replied.
The Muslims' God asked the Christians' God, "Do you believe then that you are the true God?"
"Of course I am the true God", he replied.
They both then turned to the Jewish God, "Do you believe that you are the true God?"
He put his hands up in desperation; after a pause …"Sorry, but I'll have to ask the Wife".