The Marduk Prophecy is an Assyrian document dating to between 713-612 BCE found in a building known as The House of the Exorcist adjacent to a temple in the city of Ashur. It relates the travels of the statue of the Babylonian god Marduk from his home city to the lands of the Hittites, Assyrians, and Elamites and prophesies its return at the hands of a strong Babylonian king. The original work was almost certainly written during the reign of Nebuchadnezzar I (1125-1104 BCE) as a propaganda piece. Nebuchadnezzar I defeated the Elamites and brought the statue back to Babylon, and the work was most likely commissioned to celebrate his victory.
The author would have constructed the narrative to place the events in the past in order to allow for a 'prophetic vision' in which the present king would come to restore peace and order to the city by bringing home the statue of the god. This form of narrative was commonplace in the genre now known as Mesopotamian Naru Literature where historical events or individuals were treated with poetic license in order to make a point. In a work such as The Curse of Akkad, for example, the historical king Naram-Sin (2261-2224 BCE), known for his piety, is presented as impious in an effort to illustrate the proper relationship between a monarch and the gods. The point made would be that if a king as great as Naram-Sin of Akkad could fail in piety and be punished, how much more would a person of lesser stature fare. In The Marduk Prophecy, the events are placed far in the past in order for the writer to be able to 'predict' the moment when a Babylonian king would return Marduk to his rightful home. This piece, then, also deals with the responsibility a monarch has to his god.
https://www.worldhistory.org/article/990/the-marduk-prophecy/