Lyrics:

Mama, take this badge off o me
I cant use it anymore
Its gettin dark, too dark to see
I feel Im knockin on Heavens door

Knock, knock, knockin on Heavens door
Knock, knock, knockin on Heavens door
Knock, knock, knockin on Heavens door
Knock, knock, knockin on Heavens door

Mama, put my guns in the ground
I cant shoot them anymore
That long black cloud is comin down
I feel Im knockin on Heavens door

Knock, knock, knockin on Heavens door
Knock, knock, knockin on Heavens door
Knock, knock, knockin on Heavens door
Knock, knock, knockin on Heavens door