HOW CAN I KEEP FROM SINGING

My life goes on in endless song
Above earth's lamentation
I hear the real though far-off hymn
That hails a new creation

What though the tempest loudly roars
I hear the truth, it liveth
What though the darkness 'round me close
Songs in the night, it giveth

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 ?

No storm can shake my immost calm
While to that rock I'm clinging
Since love is Lord in heaven and earth
How can I keep from singing ?