Indeed. For example the word Elohim used to convey the meaning of 'Gods' to Jews in antiquity but evolved to mean 'God', referring to YHWH alone. My understand

Indeed. For example the word Elohim used to convey the meaning of 'Gods' to Jews in antiquity but evolved to mean 'God', referring to YHWH alone. My understanding of the book of Isaiah is that it is about how the people of Israel came to abandon worship of lesser gods such as Ba'al and came to see YHWH as their God and saviour who delivered them from Babylonian captivity. https://en.wikipedia.org/wiki/Yahwism https://en.wikipedia.org/wiki/Yahwism