For Jews, it's a *library* of cultural texts. Most of them assume a common religion (although Esther never mentions a deity), but then again, so does Shakespeare.
Just because y'all took that library, declared that it must be a cohesive whole & a single book and 100% only religious doesn't change that it's *not* that for Jews.
I read once that it's hard to talk for more than 5 minutes in English without using something coined by Shakespeare.
Jacob isn't just a religious figure in Judaism, he's an ancestor and culture hero.
Y'all going around yelling at Greeks for mentioning Achilles?
Not perfect, not all inclusive, some problematic texts, definitely...
Shakespeare, of course. Freud. Mary Shelley.
And they pass laws saying that the rest of us can't put on Shakespeare productions, burn any books we write about law derived from the Magna Carta...
Because they said so.
But it's not a purely religious collection of writings. Again: it's a cultural library.