Quranic Arabic
@AhmadShoaib you are mixing up two completely different issues. The reason to consult daur-e-jahiliya adab is to understand and appreciate the “language” and “literary devices” used in Quran which was revealed in the “language” of Quraysh. Pls. watch Hassan’s video again https://solitaryspark.com/2014/11/10-common-literary-devices-with-examples.html
@Sohail But brother Sohail- the literary devices are present in the Quran already- I have no qualm with that. But the actual words of the Quran- eg one place Allah says ليعلم الله- this means in modern Arabic so Allah can know- this is illogical as Allah already knows all. So when we consult previous classical dictionaries we find out this word is also used to say so Allah can make evident/so Allah can test. And also when Mary is called اخت هارون- a modern Arab thinks this means sister- and this would lead to wrong understanding of the meaning of the word in context . This means we need to consult historical works to actually understand some Quranic words
All languages evolve, Arabic is no exception. Hassan explained this with examples (Urdu) in his video, he also mentioned how classical Arabic is preserved! See this book https://www.amazon.com/History-Development-Language-Muhammad-al-Sharkawi/dp/1138821527/ref=mp_s_a_1_3?dchild=1&keywords=Arabic+language+evolution&qid=1596129168&sr=8-3