Al-Ma'idah (The Table)
Surah 5 · Verse 14
And from those who say, “We are Christians,” We had taken a pledge from them (too), but they forgot a part of that which they were reminded with, therefore We excited enemity and hatred among them till the day of resurrection, and Allah will inform them about that which they did.
There appears to be a hint here that if any community forgets its pledge to follow the message of Allah (SWT) in accordance with the teachings of His messenger, then it will be divided into sects which will be at enemity with each other because of mutual hatred. This has happened with us too.
