That Nusku is a Babylonian god, meriting a place in the pantheon of Hammurabi, if not of the days prior to the union of the Babylonian states, is shown by the fact (1) that he had a shrine in the great temple of Marduk at Babylon, along with Nebo, Tashmiyum, and Ea;[283] and (2) that he appears in the religious texts. In view of this it might appear strange that we find no reference to the god in historical texts till we reach the Assyrian period. The reason, or at least one reason, is that Nusku is on the one hand amalgamated with Gibil, the fire-god, and on the other identified with Nabu. The compound ideogram with which his name is written includes the same sign--the stylus or sceptre--that is used to designate Nabu, the second part of the ideogram adding the idea of 'force and strength.' Whether this graphical assimilation is to be regarded as a factor in bringing about the identification of Nusku and Nabu, or is due to an original similarity in the traits of the two gods, it is difficult to say. Hardly the latter, for Nusku is a solar deity, whereas, as we have tried to show, Nabu is originally a water-deity.[284] But however we may choose to account for it, the prominence of Nusku is obscured by Nabu. As a solar deity, it is easy to see how he should have been regarded as a phase of the fire-god, and if the various other solar deities were not so regarded, it is because in the course of their development they were clothed with other attributes that, while obscuring their origin, saved them from the loss of their identity. Apart from the formal lists of gods drawn up by Sargon and his successors, Shalmaneser II. and Ashurbanabal are the only kings who make special mention of Nusku. The former calls him the bearer of the brilliant sceptre, just as Nabu is so called; and again, just as Nabu, he is termed the wise god. The two phases of the ideogram used in his name--the sceptre and the stylus--are thus united in the personage of Nusku precisely as in Nabu. On the other hand, the manner in which Ashurbanabal speaks of him reflects the mythological aspect of Nusku. In the religious literature Nusku is the messenger of Bel-Marduk, who conveys the message of the latter to Ea. From being the messenger of Bel, he comes to be viewed as the messenger of the gods in general, and accordingly Ashurbanabal addresses him as 'the highly honored messenger of the gods,' but, combining with the mythological the more realistic aspect of Nusku, refers to him also as the one who glorifies sovereignty and who, at the command of Ashur and Belit, stands at the king's side to aid in bringing the enemies to fall. As for the fire-god Gibil, with whom Nusku is identified, we have merely a reference to a month of the year sacred to the servant of Gibil in a passage of the inscriptions of Sargon.[285] Bel-Marduk.