For that matter, reading the Christian scriptures through a historical lens reveals a very different kind of thought than the modern version of Christianity and Judaism. It takes a huge amount of effort to read these documents in context; just reading them in the original languages is hard enough. But the past is a very foreign country and they see things very differently there.
No one is asking you to believe in anything, but it's self-limiting to refuse to engage with works of historical/cultural importance.
However I reject the idea that engaging with religious texts is insightful and something to promote