Gregory the Dialogist

20. When something belonging to someone is taken away by the violence of armed men, it is called plunder. But the vices of the flesh and soul, because they are propagated at the devil's suggestion, are as it were his own property. Whoever therefore, recently lax within himself but now violent, destroys vices, takes plunder; because he powerfully seizes what belongs to another. …

Commentary on 1 Kings, Book 6, Chapter 2 ↗