CANTO LIX.
Reading edition
Walking along the embankment he turns up a steep gulch to the right, and down through the purple light sees the region where the profane are punished as befits their crime.
They are compelled to eat soap. Mr. Hunt learns that the worst type of profane man: He who swears regardless of the presence of ladies—won’t even say “Oh pshaw!” after he has been forced to eat soap for a few years.
A SWEARING MAN FORCED TO EAT SOAP.