How can I keep from singing?

Tom: D
Intro: D   G   D/F#   A

             D     G       D
My life goes on in endless song
 A                 D
above earth's lamentations,
                        G       D
I hear the real, though far-off hymn
     A               D
that hails a new creation.
                F#m    Bm
Through all the tumult and the strife
  D               A
I hear it's music ringing,
             D    G     D
It sounds an echo in my soul.
          Bm   A    D
How can I keep from singing?
               D       G      D
But though the tempest loudly roars
  A                  D
I hear the truth, it liveth,
                        G        D
and though the darkness round me close
Bm           A        D
songs in the night it giveth.
             F#m      Bm
No storm can shake my inmost calm
      D                A
while to that rock I'm clinging.
              D       G          D
Since love is Lord of heaven and earth
          Bm   A    D         G   Bm   A   D   Bm   A   D   Bb7
how can I keep from singing?
             Eb      Ab       Eb
When tyrants tremble in their fear
    Bb                     Eb
and hear their death knell ringing,
                          Ab      Eb
when friends rejoice both far and near
          Cm   Bb   Eb
how can I keep from singing?

           Gm       Cm
In prision cell and dungeon vile
    Eb                   Bb
our thoughts to them are winging,
                Eb        Ab  Eb
when friends by shame are undefiled
          Cm   Bb   Eb
how can I keep from singing?
Ab   Cm   Bb   Eb   Cm   Bb   Eb