(Just to explain, the original title was a tad confusing, which is why the exchange with @aubeynarf@lemmynsfw.com might seem a bit weird.
Sorry for that. I modified the title to clarify it, and so hopefully it does make more sense, even if it now makes the post from aubeynarf look a bit odd (for which I apologise).
It would be acceptable under their belief system because it was God’s will that they were slapped and the pain is an obstacle they must overcome.
If they’re truly devout, they’ll turn the other cheek.