The Babylonian conquerors of Canaan were Semites, and the art and trade, the law and literature they brought with them were Semitic also.
In passing, therefore, from Babylonia to Canaan, Abraham was but passing from one part of the Babylonian empire to another.

He was not migrating into a strange country, where the government and civilisation were alike unknown, and the manners and customs those of another world.

The road he traversed had been trodden for centuries by soldiers and traders and civil officials, by Babylonians making their way to Canaan, and by Canaanites intending to settle in Babylonia for the sake of trade.
Harran, the first stage on his journey, bore a Babylonian name, and its great temple of the Moon-god had been founded by Babylonian princes after the model of the temple of the Moon-god at Ur, the birthplace of the patriarch.

Even in Canaan itself the deities of Babylonia were worshipped or identified with the native gods.

Anu the god of the sky, Rimmon the god of the air, Nebo the interpreter and prophet of Bel-Merodach, were all adored in Palestine, and their names were preserved to later times in the geography of the country.