The issue of biblical literalism has been gone over many times on this forum, but I suppose it may have passed you by.
The OT has from earliest days been recognised as a literary work, incorporating legend, allegory, poetry and history. Famously, Origen, back in 200AD, pooh-poohed the notion of the Garden of Eden being a literal place. According to MacCulloch's "History of Christianity", Origen and his peers in Alexandria, both Christian and Jewish, knew their Homer and read the early parts of the OT in that spirit, recognising the role of the use of a range of literary devices to convey a deeper meaning. Interpretations varied over the centuries but the church was content to accept a degree of mystery and uncertainty about some of it.
Up to the Reformation the church took its spiritual guidance from not one but two sources. One was scripture. The other was the (supposedly) divinely inspired insights of the bishops of the church, who claimed spiritual authority linked all the way back to the Apostles via a chain of ordination known as Apostolic Succession. The bishops and doctors of the church spent time interpreting scripture to wring out of it a host of meanings and symbols and this led to a body of derived doctrine, given authority by the bishops, based on scripture but going well beyond the face value of the words.
It was the advent of the Protestant Reformation, with its rejection of the established theological and clerical structures and a "basic to basics" approach known as sola scriptura which threw out the second of these sources of guidance and put all its eggs in the basket of scripture. What happened next was in some ways paradoxical. The triumphs of science in the Enlightenment led to a new intellectual demand for certainty, and the conviction that certainty could be achieved, in religion just as much as in science. This led to biblical text being re-examined with a view to gving the same confidence in the truths of religion as were being acheived in the world of science. Hence we got things like the adoption of Bishop Ussher's rather ridiculous Chronology and other manifestations of taking everything in the bible as if it were a manual of science, to be taken all at face value, Joshua making the sun stand still, night and day existing before the creation of the sun, and all.
So the idea of biblical literalism is a relatively recent one in the history of the church, is not shared by the more traditional forms of Christianity and is fairly clearly untenable when analysed, as Origen himself understood back in Alexandria in 200AD.