74:31
وَمَا جَعَلۡنَاۤ أَصۡحَـٰبَ ٱلنَّارِ إِلَّا مَلَـٰۤىِٕكَةࣰۖ وَمَا جَعَلۡنَا عِدَّتَهُمۡ إِلَّا فِتۡنَةࣰ لِّلَّذِینَ كَفَرُوا۟ لِیَسۡتَیۡقِنَ ٱلَّذِینَ أُوتُوا۟ ٱلۡكِتَـٰبَ وَیَزۡدَادَ ٱلَّذِینَ ءَامَنُوۤا۟ إِیمَـٰنࣰا وَلَا یَرۡتَابَ ٱلَّذِینَ أُوتُوا۟ ٱلۡكِتَـٰبَ وَٱلۡمُؤۡمِنُونَ وَلِیَقُولَ ٱلَّذِینَ فِی قُلُوبِهِم مَّرَضࣱ وَٱلۡكَـٰفِرُونَ مَاذَاۤ أَرَادَ ٱللَّهُ بِهَـٰذَا مَثَلࣰاۚ كَذَ ٰلِكَ یُضِلُّ ٱللَّهُ مَن یَشَاۤءُ وَیَهۡدِی مَن یَشَاۤءُۚ وَمَا یَعۡلَمُ جُنُودَ رَبِّكَ إِلَّا هُوَۚ وَمَا هِیَ إِلَّا ذِكۡرَىٰ لِلۡبَشَرِ ۝٣١
Ahmed Hulusi
We have appointed only (nineteen) angels (66:6) to be the wardens of the Fire (the hell of corporeality; not a breed of humans or the jinn)... And We specified their number (as if the number nineteen is meaningful) as an (object of) trial for the disbelievers... So, those to whom a Book (knowledge) has been given can know with certainty (what is referenced by these metaphors and thus confirm the revelation of Rasulullah [saw]) and so those who believe (in the nubuwwah and risalah of Rasulullah [saw]) will increase in faith (the knowledge of certainty; ilm al-yakeen) and so those (who acquire solid knowledge) to whom a Book (knowledge) has been given (and those who have attained certainty in faith) do not fall into doubt! And so those in whose hearts there is sickness (doubt, who are devoid of healthy thought) and the disbelievers (who are veiled from and thus deny the reality) can say, “What did Allah intend to reference with this example?”... Thus Allah misguides whom He wills and guides whom He wills. Only HU knows the armies (forces) of your Rabb! This (Saqar and other metaphors) is only a reminder for people.
Wama jaAAalna as-haba alnnari illa mala-ikatan wama jaAAalna AAiddatahum illa fitnatan lillatheena kafaroo liyastayqina allatheena ootoo alkitaba wayazdada allatheena amanoo eemanan wala yartaba allatheena ootoo alkitaba waalmu/minoona waliyaqoola allatheena fee quloobihim maradun waalkafiroona matha arada Allahu bihatha mathalan kathalika yudillu Allahu man yashao wayahdee man yashao wama yaAAlamu junooda rabbika illa huwa wama hiya illa thikra lilbashari