I wonder, too. But, the flavors of nature are ever changing, and also I think the ancient Israelites kind of inadvertently set their religion up in such a way that eventual division was kind of inevitable. Prophets can be born or inspired to deliver a message at any time at all, and a concept of the destruction and renewal of the world was noteworthy at least as far back as the Book of Daniel at ~200BCE. Check out Jewish Apocalypticism for a little more about that. But the transition from pantheon to monotheism that took place in the ancient Near East is a really interesting time period not only because of the really cool diversity of myths it produced but also because it took place at a time where history was just starting to be recorded, so there's just so much cool interactions going on between cultures, a rapidly evolving and diversifying larger civilization, lots of languages with overlapping and phonetically-similar words but varying means of recording their language, religious leaders and their students often being among the very few who could read anything being documented (imagine the power imbalance that created).

With what's happening at Gaza I wouldn't miss Judaism too.

Nice! Look for content about the Enuma Elish (which is basically like the Babylonian creation story) to hear all about Tiamat and their counterpart, Apsu (embodiment of fresh waters amongst the void) and their relationship followed by an eventual battle that ensues between descendants of Apsu and Tiamat, leading to a god named Marduk becoming the head of their pantheon (and also the god that raised Babylon from sand into a great city). From there, check out the wiki for tehom and if you're looking for videos, peruse the online video warehouse of your pleasure for links between Babylonian Tiamat and Hebrew tehom and you will not be disappointed. I'm pretty sure Richard Elliot Friedman covers it in one of his lectures about the Hebrew Bible/OT, although I can't recall exactly which one offhand.