Sentence:  Far be it from me, however, to attribute the success to "my" exertions: I know very well that the whole success depends on the corruption and weakness of that system which I attack; for all that is requisite in this siege, is "to tell the truth": let the truth be told, without concealment, and without fear of giving offence, and against such warfare the Church of England has no sort of chance: her <WSD>corruptions</WSD> and her abuses are so monstrous, that they need be only shewn to he hated; the only difficulty is to find persons who have the courage to withdraw the veil from the abominations that stand in the holy place. 
Meaning of the word marked with <WSD> tags:  (en) Something originally good or pure that has turned evil or impure; a perversion.