It’s pretty wild, he was originally a minor storm god that became the patron of Israel and then their religion was slowly modified over time - first he replaced their main god El (think Zeus/Odin) as the biggest one and then slowly over time the other gods were banned from being worshipped and eventually they ceased to exist from the holy texts.

If you read carefully, you can find verses in the Bible that acknowledge the existence of other gods, though most verses were edited over millennia and only a precious few like that remain.