Collective Takfir Of Today’s Bani Israel
Both kinds of Kafirs have different kinds of punishments. The immediate Kafir upon whom Hujjah was completed, they were given Azab, as far as their generations are concerned, they are made subject to the Christians.
There is another point, in the case of Bani Israel or Jews, Hujjah is supposed to be completed upon them, no matter it is completed through a Rasool or a tradition the prophets carry with them as national heritage. Therefore, they deserve Azab. That is why God has announced that time to time, some power will keep punishing them, till the day of judgment. وَإِذْ تَأَذَّنَ رَبُّكَ لَيَبْعَثَنَّ عَلَيْهِمْ إِلَىٰ يَوْمِ الْقِيَامَةِ مَن يَسُومُهُمْ سُوءَ الْعَذَابِ ۗ إِنَّ رَبَّكَ لَسَرِيعُ الْعِقَابِ ۖ وَإِنَّهُ لَغَفُورٌ رَّحِيمٌ