حَتَّىٰ إِذَا اسْتَيْأَسَ الرُّسُلُ وَظَنُّوا أَنَّهُمْ قَدْ كُذِبُوا جَاءَهُمْ نَصْرُنَا فَنُجِّيَ مَن نَّشَاءُ ۖ وَلَا يُرَدُّ بَأْسُنَا عَنِ الْقَوْمِ الْمُجْرِمِينَ (110)
(12:110) (It also happened like this with the former Messengers: they went on conveying the Message for a long time- but the people did not listen to them,) till the Messengers despaired of the people and the people also thought that a falsehood had been presented to them: then suddenly Our succour reached the Messengers. And when such an occasion comes, We deliver whomsoever We will, but Our scourge cannot be averted from the criminals.