Learning values ​​from the Bible

peace,
I just read your columns on studying Tanakh ( 134 , 135 ) and there is something that remains unclear to me.
You claimed that for you there is no value in studying the Bible because all the values ​​you can learn from it are "trivial." And every time you encounter a value that is not such, you will interpret the Bible in a way that suits your values, so that in any case you will not learn anything new.
On the other hand, it was implied from your words that in the past it was not like this, our ancestors did not have these trivial values ​​and they learned them from the Bible.
It seems to me that there is a contradiction here. After all, even a Jew who lived three thousand years ago and received the Bible fresh from Mount Sinai had a structured and orderly worldview from his culture, and all his study of the Bible would not have taught him anything new (either he already knew this, or he disagreed and interpreted the verses in a way that suited his values).
And if you say that he could have learned values ​​from the Bible, what is the difference between him and us – enlightened Jews of the 21st century?
Another thing that's not clear to me is where did those cultural values ​​that you already believe in come from in the first place? What is the initial source?
I would be happy to clarify your points. (Or a reference to where you have already dealt with these issues)
thanks.