Refutation of pagan accusations

وَمَا تَنَزَّلَتْ بِهِ ٱلشَّيَـٰطِينُ

And the devils have not brought it [i.e., the revelation] down.

مَآ أَنتَ بِنِعْمَةِ رَبِّكَ بِمَجْنُونٍ

You are not, [O Muḥammad], by the favor of your Lord, a madman.