How do you know from all those gods of pre-jewish polytheism?

Question

which was the right one to single out for monothesitic idolisation?

and which one was.

for the egyptian pharoah Akhenaten it was the sun disk and god aten.

Answer 1

It has been said that the gods of the very early times, were the god of the sun, the god of the moon the god of the stars etc. As it turns out one God was indeed the God of all of the above. In their own ignorant way, the worshiped the one true God, as many still do today in remote parts of the earth.