Did Luther say "every man has a Pope in his belly"?

[NaphtaliPress]

So, as is often the case with commonplace sayings, no one seems to ever say where Luther said that "every man has a pope in his belly" or you may see belly changed to heart, as you also see folks like Edwards call the quotation vulgar. I've tried a while and can't find any source.
This is a record; three problems in one short chapter by George Gillespie, c. 12 in Miscellany Questions (this, the Augustine/Chrysostom reference, and the allusion to Jeroboam not wanting his people to go to Jerusalem to consult the Sanhedrin).

 

[Phil D.]

James Swan is probably the most level-headed and reliable Luther quote researcher on the internet, and he's skeptical about the authenticity of a similar saying.

No real surprise...