Recueil dominicain du couvent Sainte-Catherine-de-Sienne de Douai, Folio 27r

Carnis mortificatio
Moriatur caro nostra, ut in ea omnis culpa moriatur:
et quasi ex mortuis viventes, novis resurgamus
operibus
S. Amb. lib. I. offic. c. 37

Moriatur caro nostra, ut in ea omnis culpa moriatur; et quasi ex mortuis viventes, novis resurgamus operibus ac moribus!
Let our flesh die, that in it every sin may die. And as though living again after death, may we rise to new works and a new life.
Saint Ambrose of Milan, On the Duties of the Clergy, Book I, Chapter 37