(ae's lyrics are slightly different and are here)
some versions have the last two verses reversed

mama take this badge from me
i can't use it anymore
it's getting  dark too dark to see
feel i'm knockin' on heaven's door

knock knock knockin' on heaven's door(repeat 3X)

mama wipe this blood from my face
i'm sick and tired of all this war
there's a long hard feelin' and it's hard to chase
feel i'm knockin' on heaven's door

chorus

mama put these guns to the ground
i can't shoot them anymore
theres a long black train and it's comin' round
feels like knockin' on heaven's door

chorus