Re: Matt 12:31. Might this particular part of the commentary include a stray word? "The sin which I the Pharisees..." The word "I" seems out of place (actually not needed) unless I'm not understanding the explanation.
It could be that the "I" that is there is actually an "l" marking a footnote. That happens frequently when documents are scanned to text. Or it could have been a mark on the page. In any case, it's most likely just a typo.