Who gave Hammurabi the authority to write and enforce the code of Hammurabi written?

Hammurabi claimed his authority to write and enforce the Code of Hammurabi was derived from the gods, particularly the sun god Shamash, who was associated with justice. He presented the code as a divine mandate, asserting that he was chosen to establish order and fairness in his kingdom. This divine backing legitimized his rule and the laws he enacted, reinforcing his position as a ruler who governed by divine will.