> iirc Judaism picked up the immortality of the soul from Hellenism in the Ptolemaic era, arguably inadvertently since they were NOT fans of Greek culture.

Some Judaism. There were sects that did not believe in it:

> The Sadducees held no belief in afterlife, because they maintained that it was not taught in any of Moses' five books, the only authoritative Scriptures they accepted. Jesus pointed out that the basis of the belief in resurrection can be found within the books of Moses, specifically citing Exodus 3:6.[17]

* https://en.wikipedia.org/wiki/Matthew_22#The_Resurrection_(2...