Excerpt
It is highly likely that Abraham's God was El, the high God of Cannan. This deity introduces himself to Abraham as El Shaddai (El of the mountain), which was one of El's traditional titles. Elsewhere he is called El Elyon (The Most High God) or El of Bethel. The name of the Cannanite High God is Alwapreserved in such Hebrew names such as Isra-El and Ishma-El
The problem that I usually find is when words like "highly likely" are used, they then continue speaking or writing as if then it is "definitely true".
The reality is that the God of Abraham was different that the gods the Canaanites and others served.