Every New Year's day the son paid a visit to his father, on which occasion the statue of Nabu was carried in solemn procession from Borsippa across the river, and along the main street of Babylon leading to the temple of Marduk; and in return the father deity accompanied his son part way on the trip back to E-Zida.

In this way, due homage was accorded to Marduk, and at the same time the close and cordial bonds of union between Babylon and Borsippa found satisfactory illustration.

E-Sagila and E-Zida become, and remain throughout the duration of the Babylonian religion, the central sanctuaries of the land around which the most precious recollections cluster, as dear to the Assyrians as to the Babylonians.

The kings of the northern empire vie with their southern cousins in beautifying and enlarging the structures sacred to Marduk and Nabu.
In view of the explanation offered for the silence maintained by Hammurabi and his successors regarding Nabu, we are justified in including Nabu in the Babylonian pantheon of those days.

In later times, among the Assyrians, the Nabu cult, as already intimated, grows in popularity.