If you're the devil, why not make the straps disappear?
4 seconds sound clip from the The Exorcist movie soundboard.
You can hear this line at 01:24:53 in the Blu-ray version of the movie.
Quote context
[...]
- I'm afraid you might hurt yourself, Regan.
- Well, then, let's introduce ourselves. I'm Damien Karras.
- And I'm the devil. Now, kindly undo these straps.
- If you're the devil, why not make the straps disappear?
- That's much too vulgar a display of power, Karras.
- Show me Regan and I'll loosen one of the straps.
- Can you help an old altar boy, Father?
- Your mother's in here with us, Karras. Would you like to leave a message? I'll see that she gets it.
[...]