The Riverside Sermon

This is a funny joke I just read: The Riverside
      A preacher was completing a temperance sermon; with great expression he said, "If I had all the beer in the world, I'd take it and throw it into the river."
     With even greater emphasis he said, "And if I had all the wine in the world, I'd take it and throw it into the river."
     And then finally, he said, "And if I had all the whiskey in the world, I'd take it and throw it into the river."
He sat down.
     The song leader then stood very cautiously and announced with a smile, "For our closing song, let us sing Hymn # 365: "Shall We Gather at the River."

I thought this was funny, just having come from church.