(by Robert Wadsworth Lowry and Doris Plenn)

My life flows on in endless song;
Above earth's lamentations,
I hear the real, tho' far-off hymn
That hails a new creation;
Through all the tumult and the strife
I hear its music ringing;
It sounds an echo in my soul—
    How can I keep from singing?

Although the tempest loudly roars,
I hear the truth, it liveth.
Bot though 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?

link for more info