Lyrics:

Mama, take this badge off of me
I can't use it anymore
It's gettin' dark, too dark for me to see
I feel like I'm knockin' on heaven's door
Knock, knock, knockin' on heaven's door
Knock, knock, knockin' on heaven's door
Knock, knock, knockin' on heaven's door
Knock, knock, knockin' on heaven's door
Mama, put my guns in the ground
I can't shoot them anymore
That long black cloud is comin' down
I feel like I'm knockin' on heaven's door
Knock, knock, knockin' on heaven's door
Knock, knock, knockin' on heaven's door
Knock, knock, knockin' on heaven's door
Knock, knock, knockin' on heaven's door