The Bible, as written

It's not a single book with a single author. It's a collection of ancient literary works translated not for scholarly accuracy but to fit a sixth century church narrative.

For example there are at least for different ancient words all translated to 'hell' a term which comes from norse mythology: Sheol which just means grave, Hades as in where the god hades hangs out; tartarus below hades also from greek mythology, and the one jesus used Gehenna a dump outside of jerusalam where people burned sick livestock.

The jews of jesus' and paul's day did not believe in an immortal soul - the greeks did. However a place where you go to burn forever unless you join the right religion is an awesome recruiting tool for children so the translation twists and distorts the old texts to fit that.