Of course. Not only has the Bible had huge influence, but is itself the product of factors and influences that are highly relevant to understanding humans and society. It's important to understand the Bible and also to understand it as a product of the human knowledge, ignorance, prejudices, fears, bigotries, politics, and desires to control that motivated it's authors and are the basis of it's appeal. IOW, it's important to understand the Abrahamic religion as a social phenomenon.
That context of history, politics, psychology, and sociology are of course equally important for theists to understand. Although if they did, they wouldn't likely remain theists or at least their version of it and wouldn't treat the Bible as a particularly special source of valid knowledge or ethics relevant for today, but rather as a product of highly flawed, ethically questionable, biased humans trying to promote a particular set of cultural and political norms and trying to grapple with experiences and events that they lacked the knowledge and methods to understand.
That's why atheists tend to have more knowledge of the Bible, Christianity, and religion in general than most theists do.