Mortification of the flesh and Rigorousness

Rigorousness and mortification of the flesh are semantically related. In some cases you can use "Rigorousness" instead a noun phrase "Mortification of the flesh".

Rigorousness noun - The quality or state of being demanding or unyielding (as in discipline or criticism).

Mortification of the flesh and rigorousness are semantically related. You can use "Mortification of the flesh" instead a noun "Rigorousness".