Nusku is:
God of Nippur, leader and counsellor of the gods.[4]
The sway of the gods was extended however far beyond their temples and temple cities. Marduk is not merely “King of Ezida, lord of Emachtila,” he is “Marduk, lord of the lands,” and “Marduk, king of heaven and earth.”[5] So also Ishtar is “Ishtar, queen of all peoples, directress of mankind”;[6] while Shamash is:
Shamash, king of heaven and earth,[7]
Ruler of things above and below.
It would be expected that the gods would have official duties at the heavenly court, and that these offices would be included in their titles. Opposed to this, however, must have been the tendency of the worshippers to exalt their own special deity to a supreme position; and this would tend to bring with it the elimination of all titles that would suggest a subordinate position, and they would be inclined at the same time to attribute to their own deity those offices, for which other deities were famed. Nebo however is addressed as
Nebo, bearer of the tablets of destiny of the gods, director of Esagila.[8]
Nusku is:
Protector of the sacrificial gifts of all the Igigi,[9]
Messenger of Anu, who brings Bel’s commands to fulfilment.