Read and reflect on verse 1903 from Surah An-Nahl: He causes the angels to descend with this divine inspiration, [bestowed] at His behest upon whomever He wills of His servants: "Warn [all human beings...
يُنَزِّلُ الْمَلَائِكَةَ بِالرُّوحِ مِنْ أَمْرِهِ عَلَىٰ مَنْ يَشَاءُ مِنْ عِبَادِهِ أَنْ أَنْذِرُوا أَنَّهُ لَا إِلَٰهَ إِلَّا أَنَا فَاتَّقُونِ
He causes the angels to descend with this divine inspiration, [bestowed] at His behest upon whomever He wills of His servants: "Warn [all human beings] that there is no deity save Me: be, therefore, conscious of Me!"