How does the Commandant’s statue foreshadow Don Giovanni’s fate?

In Wolfgang Amadeus Mozart’s opera Don Giovanni, the Commandant’s statue serves as a powerful instrument of divine retribution, foreshadowing the protagonist's ultimate downfall through both musical and narrative cues.

The foreshadowing begins in the opera's overture, where Mozart introduces foreboding chords that symbolize Giovanni’s inevitable fate and the eventual, massive movement of the stone statue that concludes his libertine lifestyle.1

As the plot progresses, the statue—a funerary monument to the man Giovanni murdered—acts as a harbinger of judgment. When Giovanni brazenly invites the statue to supper, its acceptance via a horrifying nod confirms that his time is running out. During the final confrontation, the statue arrives to demand repentance. When the unrepentant Giovanni refuses, the statue traps him in a marble grasp, dragging him into the flames of hell. This dramatic sequence serves as the literal and moral fulfillment of the warnings established by the statue's earlier appearances and the ominous musical themes introduced at the start of the work.21