I'm hidden in the night
Waiting for a time
A time to come out
And let my light shine
Not during a crime
Nor during a fight
But sometime

Sometime when I'm need to most
During someone's darkest hour
Someone who has drift
Someone who has grown sour
That'st why I stand
As an angel in the darkness

Shelby Smith

http://www.poemhunter.com/poem/angel-in-the-darkness-2/