elyon (el the most high) is the title of the most high canaanite god, el. jews later absorbed the title "el" into yahweh as the jews began to absorb canaan after the assyrian empire weakened the region. this was part of the "yahweh-alone" movement that was reforming yahwism to become increasingly monotheistic. the most high canaanite god, el, even had a consort named asherah. after the yahwists absorbed el into yahweh they gave this consort goddess to yahweh as yahweh's wife. but over time even asherah was removed, hence why the bible later states that yahweh want all depictions of asherah, specifically, to be destroyed.
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