"Career Path" joke

A Rabbi and a Priest were sitting together on a train, and the Rabbi leans over and asks, "So how high can you advance in your organization?"

The Priest says "If I am lucky, I guess I could become a Bishop."

"Well, could you get any higher than that?" asks the Rabbi.

"I suppose that if my works are seen in a very good light that I might be made an Arch Bishop" said the Priest a bit cautiously.

"Is there any way that you might go higher than that?"

"If all the Saints should smile, I guess I could be made a Cardinal", said the priest. "Could you be anything higher than a Cardinal?" probed the Rabbi.

Hesitating a little bit, the Priest said "I suppose that I could be elected Pope, but..."
So the Rabbi says "And could you be anything higher than that?, is there any way to go up from being the Pope?"

"What!!! I should be the Messiah himself!?!" The Rabbi leaned back and said "One of our boys made it."