Why was Judaism the only Levantine religion that survived into the Common Era?
Ancient Canaan (roughly modern Israel and Lebanon) and the Levant (Canaan plus modern Jordan and Syria) was an incredibly diverse region. From roughly 1000BCE to 500BCE, Canaan was a patchwork of petty kingdoms in nearly constant conflict. Judah and Israel were just two kingdoms in a politically and religiously diverse area. Large empires such as Egypt, Hittite, Assyria, Babylon, and Persia had to carefully navigate shifting alliances with these minor powers.
By about 300BCE, when Hellenistic kingdoms were fully established, only Judah (the kingdom) and Judaism (the religion) are left. There's no mention of kingdoms like Ammon, Moab or Damascus, nor of Canaanite gods like El, Baal, or Ashura. Why did Judah and Judaism alone survive this period?
Some specific questions:
- Am I completely wrong? Did kingdoms like Moab or Gaza still exist when Ptolemy and Seluecus established their empires?
- Did the Dictate of Cyrus establish Judean dominance over the region? That is, did Cyrus not just permit the Jews to return, but also helped them take over the entire region?
- Why did the monotheistic Israelite religion survive into the Common Era, while Canaanite practices survived in Carthage, Iberia, and other places far from their birthplaces?
- Did Canaanite practices syncretize with Greek, Egyptian, and Jewish practices? Such that they didn't disappear but rather were absorbed into other belief systems?