﴿ قُلْ أَرَءَيْتُمْ إِنْ أَهْلَكَنِىَ ٱللَّهُ وَمَن مَّعِىَ أَوْ رَحِمَنَا فَمَن يُجِيرُ ٱلْكَٰفِرِينَ مِنْ عَذَابٍ أَلِيمٍۢ ﴾

“SAY [O Prophet]: "What do you think? Whether God destroys me and those who follow me, or graces us with His mercy - is there anyone that could protect [you] deniers of the truth from grievous suffering [in the life to come]?"”

When the addressee is not convinced by reasoning, the preacher repeats his utterances of firm faith and thus stirs his inner self into awakening. Even if there is the slightest sensitivity in a man, these last utterances are enough to make him feel the urge to reform himself. But one whose conscience has been completely blunted, can never be awakened by any device.