Can we clarify, is the notion that the Christian scriptures / New Testament contract did away with the Old Testament a 'general christian doctrine' or was that just a specific JW / WTS belief?
We keep running into this comparison with the bible but my understanding is that the OT is inherently out of date and no longer to be followed (for christians).
So the comparison should be Quran to Christian Scripture. I agree that the OT and Quran are pretty similar but no one is pushing for people to follow the OT now AFAICT (again, talking generalities / christianity)