Blaspheme one part of the Trinity but not the whole? Luke 12:10 NIV


  And anyone who speaks a word against the Son of Man, it will be
  forgiven him; but to him who blasphemes against the Holy Spirit, it
  will not be forgiven


How is it possible to blaspheme the Son of Man but not the Holy Spirit since the trinity is one?
While the three persons of the Trinity are one God, they are three persons. If it is possible to talk about one of the persons alone (and it clearly is) then it is also possible to blaspheme against only one.