Dur-Sharrukin

"From this day forward, your pronouncement shall be unchangeable, to raise or bring low - these shall be in your hand."

These words are for Marduk at the onset of the fourth tablet of the Enuma Elish, when he accepted to be the divine avenger and bind Tiamat, saving the lives of all the Anunnaki. 

In Akkadian:
ištu ūmim-ma lā innennâ qibītka
šušqû u šušpulu šī lū qātka

A copy of this tablet was accessioned in 1882 by the British Museum, discovered by Hormuzd Rassam. Link to that artifact (click here).