Here are the Digital Tradition lyrics for this song, and I think this version has serious flaws.

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        HOW CAN I KEEP FROM SINGING

(G) C F / C G / C F C / C G C /
     C - / C - / C F C / C G C

  
  HOW CAN I KEEP FROM SINGING
  
  My life flows on in endless song
  Above earth's lamentation.
  I hear the real, thought far off hymn
  That hails the new creation
       Above the tumult and the strife,
       I hear the music ringing;
       It sounds an echo in my soul
       How can I keep from singing?
  
  What through the tempest loudly roars,
  I hear the truth, it liveth.
  What through the darkness round me close,
  Songs in the night it giveth.
       No storm can shake my inmost calm
       While to that rock I'm clinging.
       Since love is lord of Heaven and earth
       How can I keep from singing?
  
  When tyrants tremble, sick with fear,
  And hear their death-knell ringing,
  When friends rejoice both far and near,
  How can I keep from singing?
       In prison cell and dungeon vile
       Our thoughts to them are winging.
       When friends by shame are undefiled,
       How can I keep from singing?
  
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  Pete Seeger helped to make this song fairly well-known in the
  folk-revival.  He learned it from Doris Plenn, who had it from
  her North Carolina family.  It can be found in SING OUT, Vol 7,
  No 1, 1957.
  
  Recorded by Ed Trickett on Turning Toward the Morning, FSI-56
  @religion  @music
  filename[ KEEPSING
  TUNE FILE: HOWCANI
CLICK TO PLAY 
  DC