The Collaborative International Dictionary of English v.0.48:

Comforter \Com"fort*er\, n.
   1. One who administers comfort or consolation.
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            Let no comforter delight mine ear
            But such a one whose wrongs do suit with mine.
                                                  --Shak.
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   2. (Script.) The Holy Spirit, -- referring to his office of
      comforting believers.
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            But the Comforter, which is the Holy Ghost, whom the
            Father will send in my name, he shall teach you all
            things.                               --John xiv.
                                                  26.
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   3. A knit woolen tippet, long and narrow. [U. S.]
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            The American schoolboy takes off his comforter and
            unbuttons his jacket before going in for a snowball
            fight.                                --Pop. Sci.
                                                  Monthly.
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   4. A wadded bedquilt; a comfortable. [U. S.]
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   Job's comforter, a boil. [Colloq.]
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The Collaborative International Dictionary of English v.0.48:

Job \Job\ (j[=o]b), n.
   The hero of the book of that name in the Old Testament; the
   prototypical patient man.
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   Job's comforter.
   (a) A false friend; a tactless or malicious person who, under
       pretense of sympathy, insinuates rebukes.
   (b) A boil. [Colloq.]

   Job's news, bad news. --Carlyle.

   Job's tears (Bot.), a kind of grass (Coix Lacryma), with
      hard, shining, pearly grains.
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