It's from the Simpsons, when Bart had the radio ventriloquist machine and made Homer think God was talking to him:
"Homer: (slams the door) Why do you mock me, O Lord? Marge: Homer, that's not God. That's just a waffle that Bart tossed up there. (Marge scrapes it off into Homer's hands.) Homer: I know I shouldn't eat thee, but -- (bites) Mmm, sacrilicious."