Breh,
Think about all the words that have changed meaning in your lifetime, even words abandoned,
"Regional Slang" that ONLY makes sense to the People of that Region.
The English language that we speak isn't exactly the same as it was when America was founded.
How many different decades that you are aware of, where different words/phrases were used?
Plus the addition of "Loan Words" from other cultures (from other regions/countries).
These are all "Natural Processes", that happen "Organically", no Divine Intervention needed.
It is best to look at the biblical text as Spiritual Guides.
Not everything related to the historical accounts(Biblical) is going to be correct.
While you are studying the Bible also study history, especially the history of the peoples being discussed.
One undisputed fact is that the Ancestors of ALL MODERN HUMANS came from African Populations that migrated out into "Eurasia".
Those Africans ALREADY had different languages