Marduk, Aten, Yawheh then Allah

Monotheism, eventually, emerged in the ancient world as a political and intellectual necessity.

Marduk the ancient god of Babylon, -the epic of creation-, was raised above the great gods of the time, Anu and Enlil, to the one true god by the king Hammurabi during the early second millenium BCE, Hammurabi of course is famous for producing one of the earliest ancient legal codes in history.

Meanwhile in Egypt, there was another god that approached a universalistic monotheism state, more closer than Marduk in mesopotamia.

Aten, the Sun-disc god of egypt, was brought to dominance and total power over Ancient egypt during the 14th century BCE by the Pharaoh Akhenaten (Amenhotep IV).

one of the hymns that glorify Aten:

You set every man in his place,

You supply their needs,

Everyone has his food,

His lifetime is counted,

Their tongues differ in speech,

Their characters likewise,

Their skins are distinct,

source and another

Sounds familiar to Quran.com/30/22?

Sigmund Frued wrote in his book (Moses and Monotheism) that Moses was in Egypt during the god Aten's reign and maybe carried the idea of monotheism and a single powerful god to Canaan, where it eventually would launch the Judeo-Christian ideology and give birth to Yahweh.

Yet, Marduk is considered the most influential deity that led to monotheism in the ancient world. He (belief in him) helped defeat and obliterate the god of ancient israel so the Israelites would later respond by creating a monotheism of their own.

The political emergence of Allah, a product of the Monotheistic Evolution, that helped unify the small and fragmented polytheistic tribal states of Arabia, was inevitable. And after this, it would only be a matter of time and plagiarism.

The idea of Allah was just another step in a series of political, economic and ideological events that were sweeping the region at the time, gods are destined by our crippled psychology to emerge and/or whither away in time.