I am assuming that these are lyrics (or a movie quote). I've found them occasionally cited (anonymously) around the 'Net; they were also the last words of executed killer Douglas Roberts just today in Texas.
I can't find the original source. Anyone ever hear this in their music, or have strong Google-fu?
n.b.: Real updates coming soon. Still alive, just have been taking an unexpected and unannounced Internet sabbatical recently.