Sentence:  The curse of avarice and cupidity / Is all my sermon, for it frees the pelf. / Out come the pence, and specially for myself, / For my exclusive purpose is to win / And not at all to <WSD>castigate</WSD> their sin. 
Meaning of the word marked with <WSD> tags:  To execrate or condemn something in a harsh manner, especially by public criticism.