Is the bible obsolete

The bible consists of multiple books that were written thousands of years ago. The majority of the books with the exception of Revelations and maybe a few other verses were written about that a particular point in time. For example the book of Psalms was written during a time when there was war. Since the majority of the books in the bible were written about a particular time in history it could be said that the bible no longer applies to present day.
But why is the bible not obsolete? Many people argue that some of the rules in the bible are in practical for this time. One example, of a rule that wouldn’t be as practical today would be having premarital sex. In the past if a person was to engage in premarital sex, particularly a woman, she would have no chance of getting married because it would unacceptable. And the woman would need a man in this society in order to provide for her. But in this day and age females are independent and can provide for themselves and so it is socially acceptable for people to engage in premarital sex. But although I don’t agree with all the rules in the bible and although I feel that it is partially out dated, I don’t believe that the bible is obsolete. Since the bible is written in a manner that draws it to be interpreted. This allows humans to still feel like the bible can give them guidance thousands of years later.