Crossword puzzle clue "jocular response to how did you know"

Jocular response to "How did you know?!"

"Demand me nothing: what you know, you know: From this time forth I never will speak word" is his last line

Goo Goo Dolls song that you probably know from the way John Rzeznik snarls "But you don't even know who I am"

"You know that it would be untrue, you know that I would be a ___"

Church bells sound, I know, you wouldn't know as you're a heathen who's never stepped foot in a church before or even walked by one

Response to ''What did you do when you saw the bear?''

Jocular remark by someone holding a door, literally?

Jocular "Gotcha"