Marley's dead body features in the opening lines of the novella. This finality shows that it is too late for him to change his selfish ways
Marley's face appears on the door knocker of Scrooge's house
Marley visits Scrooge on the seventhanniversary of his death. He drags cash boxes and chains as a metaphor for the weight of his sin and greed during his life
Marley expresses regret for his selfish actions and warns Scrooge of a similar fate if he does not change