Old.
In the 1950s, my (methodist preacher) father told a slightly different version of the same joke, the difference being that the preacher was supposed to say "and the fire came down from heaven", whereupon the boy was supposed to light a piece of newspaper, and drop it down from the rafters. When no fire came down from above, the preacher looked up to the boy, who apologised by saying "I'm sorry sir, but the cat has pissed on the last match".