Sentence:  He again stated that he was `` a regular minister '' ; that he was `` devoting an average of 100 hours a month to actual preaching publicly '' , in addition to 50 to 75 hours in other ministerial <WSD>duties</WSD> , and that he opposed war in any form . 
Meaning of the word marked with <WSD> tags:  work that you are obliged to perform for moral or legal reasons