Key Verses

1. 26:208Ash-ShuaraWarning
   وَمَآ أَهۡلَكۡنَا مِن قَرۡيَةٍ إِلَّا لَهَا مُنذِرُونَ
   And We destroyed no township but it had its warners
   In context

   I did not destroy any nation except they were warned by sending messengers to them and revealing books.

2. 35:37FatirWarning
   وَهُمۡ يَصۡطَرِخُونَ فِيهَا رَبَّنَآ أَخۡرِجۡنَا نَعۡمَلۡ صَٰلِحًا غَيۡرَ ٱلَّذِي كُنَّا نَعۡمَلُۚ أَوَلَمۡ نُعَمِّرۡكُم مَّا يَتَذَكَّرُ فِيهِ مَن تَذَكَّرَ وَجَآءَكُمُ ٱلنَّذِيرُۖ فَذُوقُواْ فَمَا لِلظَّـٰلِمِينَ مِن نَّصِيرٍ
   And they cry for help there, (saying): Our Lord! Release us; we will do right, not (the wrong) that we used to do. Did not We grant you a life long enough for him who reflected to reflect therein? And the warner came unto you. Now taste (the flavour of your deeds), for evil-doers have no helper.
   In context

   They will cry out therein as loud as they can, seeking help by saying: Our Lord! Let us out from the fire, and we will do righteous deeds, different to what we did before so that we can attain Your pleasure and be saved from Your punishment.

3. 36:6Ya-Sin
   لِتُنذِرَ قَوۡمٗا مَّآ أُنذِرَ ءَابَآؤُهُمۡ فَهُمۡ غَٰفِلُونَ
   That thou mayst warn a folk whose fathers were not warned, so they are heedless.
   In context

   I revealed it to you to warn and exhort a nation, the Arabs to whom no Messenger has come to warn them and as a result they are heedless of faith and monotheism. Likewise is the case of every nation which has been away from the exhortation, they need messengers, scholars and preachers to remind them.

4. 67:8Al-MulkWarning
   تَكَادُ تَمَيَّزُ مِنَ ٱلۡغَيۡظِۖ كُلَّمَآ أُلۡقِيَ فِيهَا فَوۡجٞ سَأَلَهُمۡ خَزَنَتُهَآ أَلَمۡ يَأۡتِكُمۡ نَذِيرٞ
   As it would burst with rage. Whenever a (fresh) host is flung therein the wardens thereof ask them: Came there unto you no warner?
   In context

   It almost bursts within itself and comes apart due to its extreme rage over those that are thrown into it. Each time a group is thrown into it from the disbelievers, the angels appointed over it will ask them scoldingly: “Did a Messenger not come to you in the world, warning you of the punishment of Allah?”

5. 67:9Al-MulkWarning
   قَالُواْ بَلَىٰ قَدۡ جَآءَنَا نَذِيرٞ فَكَذَّبۡنَا وَقُلۡنَا مَا نَزَّلَ ٱللَّهُ مِن شَيۡءٍ إِنۡ أَنتُمۡ إِلَّا فِي ضَلَٰلٖ كَبِيرٖ
   They say: Yea, verily, a warner came unto us; but we denied and said: Allah hath naught revealed; ye are in naught but a great error.
   In context

   The disbelievers will say, “Indeed! A Messenger did come to us warning us of the punishment of Allah but we rejected him, and we said to him, “Allah did not reveal any revelation. O Messengers! You are in nothing but clear deviance from the truth.””