When the Devil buys a soul, he marks the person's flesh, so we will know him.
6 seconds sound clip from the Witchfinder General movie soundboard.
You can hear this line at 00:22:20 in the Blu-ray version of the movie.
Quote context
[...]
- Look, he still prays to Satan.
- If the Devil made you a priest, he's going to have hidden his mark with a lot of care.
- When the Devil buys a soul, he marks the person's flesh, so we will know him.
- If such a mark is pricked, no blood will flow, nor pain be felt.
- Mistress Sara? Mistress Sara? They've come for him.
- Seems Satan has hidden his mark well, Matthew.
- Quick, then, you two, around the table. And keep him moving.
[...]