<a href='http://www.ibs.org/niv/passagesearch.php?passage_request=Isaiah%2049:4&tniv=yes' target='_blank' rel='nofollow'>http://www.ibs.org/niv/passagesearch.php?passage_request=Isaiah%2049:4&tniv=yes</a><br/>But I said, "I have labored in vain; I have spent my strength for nothing at all. Yet what is <b>due</b> me is in the LORD's hand, and my reward is with my God." (<i>Today's New International Version</i>)<br/><br/>What part of speech is the word <b><i><u>due</u></i></b> in the above sentence?