Is The Qur'an Copied From Previous Scriptures?

LINKS:

https://samgerrans.substack.com/p/the-quran-and-earlier-writings https://samgerrans.substack.com/p/the-children-of-israel-in-the-quran https://samgerrans.substack.com/p/narrative-voice-in-the-quran https://earlierwritings.quranite.com/