Where in Pentateuch does it say that only a single god exists? Alternatively we have: When Elyon gave the nations their inheritance, when he separated humanit

Where in Pentateuch does it say that only a single god exists? Alternatively we have: When Elyon gave the nations their inheritance, when he separated humanity, he fixed the boundaries of the peoples according to the number of divine beings, for Yahweh's portion is his people, Jacob his allotted heritage. - Deuteronomy 32:8–9