How Can I Keep From Singing Lyrics

How can I keep (how can I keep)
How can I keep from singing

[ Lyrics from: http://www.lyricenter.com/e26444-shedaisy~how_can_i_keep_from_singing_lyrics.html ]
My life flows on in endless song
Above earth's lamentation
I hear the sweet (I hear the sweet)
The far off hymn (the far off hymn)
That hails a new, a new creation

Through all the tumult and the strife
I hear the music ringing
It finds an echo (echo)
In my soul (in my soul)
How can I keep from singing

The piece of Christ makes fresh my heart
A fountain ever springing
All things are mine since I am His
How can I keep from singing

Since Christ is Lord (since Christ is Lord)
Of heaven and earth (of heaven and earth)

How can I keep from singing