The Babylonian cosmology Enuma Elish describes the earliest stage of the universe as one of watery chaos and something similar is described in Genesis.
There the primeval state of the universe is a watery chaos, as it is in the Egyptian and Babylonian myths.
Thus he has been interpreted as being the 'complete one' and also the finisher of the world, which he returns to watery chaos at the end of the creative cycle.
In the Babylonian creation story Enuma Elish the primordial world is described as a watery chaos from which everything else appeared.
The evidence of the text does not appear to me to support the view that any reference to a watery chaos preceding Creation must necessarily be of Semitic origin.
In the Babylonian creation story Enuma Elish the universe was in a formless state and is described as a watery chaos.
In Genesis the world in its early state after its creation is described as a watery chaos and the earth "without form and void".
Behind them the rapids crashed and roared in watery chaos.
Tatenen represented the Earth and was born in the moment it rose from the watery chaos, analogous to the primeval mound of the benben and mastaba and the later pyramids.