To answer that you have to take it on its own terms, what was it written for, for who etc. Trying to evaluate as if it were written last week for a modern audience doesn’t give you the same understanding.
It’s a book that has played quite a major role in forming western culture and societies, influencing and being influenced by the contemporaneous development of ideas in philosophy, the sciences and arts etc. It’s indivisible from any of that and has influenced all of it, as with Confucius’s writings in China, or the myths, stories, ideas that form the foundations of societies in any other part of the world.