Mama, take this badge away  I can't use it any more  It's getting dark, too dark to see  Feels like I'm knocking on heaven's door  Knock, knock, knocking on heaven's door  Knock, knock, knocking on heaven's door  Knock, knock, knocking on heaven's door  Knock, knock, knocking on heaven's door  Mama, put my guns in the ground  I can't shoot them any more  The dark black cloud is coming down  Feels like I'm knocking on heaven's door  Knock, knock, knocking on heaven's door  Knock, knock, knocking on heaven's door  Knock, knock, knocking on heaven's door  Knock, knock, knocking on heaven's door  Ooh, ooh, ooh, ooh ...  Knock, knock, knocking on heaven's door ...