Lyrics:

Mama, take this badge off o'' meI can''t use it anymoreIt''s gettin'' dark, too dark to seeI feel I''m knockin'' on Heaven''s doorKnock, knock, knockin'' on Heaven''s doorKnock, knock, knockin'' on Heaven''s doorKnock, knock, knockin'' on Heaven''s doorKnock, knock, knockin'' on Heaven''s doorMama, put my guns in the groundI can''t shoot them anymoreThat long black cloud is comin'' downI feel I''m knockin'' on Heaven''s doorKnock, knock, knockin'' on Heaven''s doorKnock, knock, knockin'' on Heaven''s doorKnock, knock, knockin'' on Heaven''s doorKnock, knock, knockin'' on Heaven''s door