Generic eschatological humour
A woman died and went to heaven.
As she stood in front of St. Peter at the Pearly Gates, she saw a huge wall of clocks behind him.
She asked, "What are all those clocks?"
St. Peter answered, "Those are Lie-Clocks. Everyone on Earth has a Lie-Clock. Every time you lie the hands on your clock will advance one minute."
"Oh," she said, "whose clock is that?"
"That's Mother Teresa's. The hands have never moved, indicating that she never told a lie."
"Incredible," she said. "And whose clock is that one?"
St. Peter responded, "That's Abraham Lincoln's clock. The hands have moved twice, telling us that Abe told only two lies in his entire life."
"Where's [insert favourite politician's name] clock?" she asked.
"Oh [insert favourite politician's name]'s clock is in Jesus' office. He's using it as a ceiling fan."