Mama take this badge from me, G D a
' Cause I can't use it any more. G D C
It's getting dark, too dark to see, G D a
Feels like I'm knocking on heaven's door. G D C

Knock, knock, knocking on heaven's door. G D C
Knock, knock, knocking on heaven's door. G D C
Knock, knock, knocking on heaven's door. G D C
Knock, knock, knockin on heaven's door. G D C

Mama put those guns to the ground. G D a
'Cause I can't shoot them anymore. G C D
That cold black cloud is comin' down. G D a
Feels like I'm knockin' on heaven's door. G D C

Ref.:
Knock, knock, knocking on heaven's door. G D C x3