Amurru and Martu are names given in Akkadian and Sumerian texts to the god of the Amorite/Amurru people, often forming part of personal names. He is sometimes called IluAmurru (DMAR.TU). He was the patron god of the Mesopotamian city of Ninab, whose exact location is unknown.
Amurru/Martu was probably a western Semitic god originally. He is sometimes described as a ‘shepherd’ or as a storm god, and as a son of the sky-god Anu. He is sometimes called bêlu šadī or bêl šadê, ‘lord of the mountain’; dúr-hur-sag-gá sikil-a-ke, ‘He who dwells on the pure mountain’; and kur-za-gan ti-[la], ‘who inhabits the shining mountain’. In Cappadocian Zinčirli inscriptions he is called ì-li a-bi-a, ‘the god of my father‘.
Accordingly, it has been suggested by L. R. Bailey (1968) and Jean Ouelette (1969), that this Bêl Šadê might be the same as the Biblical ’Ēl Šaddāi who is the God of Abraham, Isaac, and Jacob in the “Priestly source” of narrative, according to the documentary hypothesis. It is possible that Šaddāi means ‘He of the mountains’ or even ‘the breasted God’ as early iconography of Yahweh at Kuntilet Arjud shows him to have been hermaphroditic (possessing both breasts and male genitals). Alternately, Bêl Šadê could have been the fertility-god ‘Ba’al‘, possibly adopted by the Canaanites, a rival and enemy of the Hebrew God YHWH, and famously combatted by the HebrewprophetElijah.
Amurru also has storm-god features. Like Adad, Amurru bears the epithet ramān ‘thunderer’, and he is even called bāriqu ‘hurler of the thunderbolt’ and Adad ša a-bu-be ‘Adad of the deluge’. Yet his iconography is distinct from that of Adad, and he sometimes appears alongside Adad with a baton of power or throwstick, while Adad bears a conventional thunderbolt.
Amurru’s wife is sometimes the goddess Ašratum (see Asherah) who in northwest Semitic tradition and Hittite tradition appears as wife of the god Ēl which suggests that Amurru may indeed have been a variation of that god. If Amurru was identical with Ēl, it would explain why so few Amorite names are compounded with the name Amurru, but so many are compounded with Il; that is, with Ēl.
Another tradition about Amurru’s wife (or one of Amurru’s wives) gives her name as Belit-Seri, ‘Lady of the Desert’.
A third tradition appears in a Sumerian poem in pastoral style, which relates how the god Martu came to marry Adg̃ar-kidug the daughter of the god Numushda of the city of Inab. It contains a speech expressing urbanite Sumerian disgust at uncivilized, nomadic Amurru life which Adg̃ar-kidug ignores, responding only: “I will marry Martu!”.