Allah, the Exalted, says to His Prophet concerning these stories and their like,

﴿مِنْ أَنبَآءِ الْغَيْبِ﴾

(of the news of the Unseen) from the information of the unseen of the past. Allah revealed it to you (the Prophet ) in the way that it occurred, as if he witnessed it himself.

﴿نُوحِيهَآ إِلَيْكَ﴾

(which We reveal unto you;) This means, "We teach it to you (Muhammad) as revelation from Us to you.''

﴿مَا كُنتَ تَعْلَمُهَآ أَنتَ وَلاَ قَوْمُكَ مِن قَبْلِ هَـذَا﴾

(neither you nor your people knew it before this.) This means that neither you (Muhammad ) nor anyone of your people, have any knowledge of this. This is so that no one who rejects you can say that you learned it from him. Rather, it was Allah Who informed you of it in conformity with the true situation (of the story), just as the Books of the Prophets who were before you testify to. Therefore, you should be patient with the rejection of your people and their harming you. For verily, We shall help you and surround you with Our aid. Then, We will make the (good) end for you and those who follow you in this life and the Hereafter. This is what We did with the Messengers when We helped them against their enemies.

﴿إِنَّا لَنَنصُرُ رُسُلَنَا وَالَّذِينَ ءَامَنُواْ﴾

(Verily, We will indeed make victorious Our Messengers and those who believe.) Allah also said,

﴿وَلَقَدْ سَبَقَتْ كَلِمَتُنَا لِعِبَادِنَا الْمُرْسَلِينَ - إِنَّهُمْ لَهُمُ الْمَنصُورُونَ ﴾

(And, verily, Our Word has gone forth of old for Our servants, the Messengers, that they verily, would be made triumphant.) ﴿37:171-172﴾ Then, Allah says,

﴿فَاصْبِرْ إِنَّ الْعَـقِبَةَ لِلْمُتَّقِينَ﴾

(So be patient. Surely, the (good) end is for those who have Taqwa.)

﴿وَإِلَى عَادٍ أَخَـهُمْ هُودًا قَالَ يَقَوْمِ اعْبُدُواْ اللَّهَ مَا لَكُمْ مِّنْ إِلَـهٍ غَيْرُهُ إِنْ أَنتُمْ إِلاَّ مُفْتَرُونَ - يَقَوْمِ لا أَسْأَلُكُمْ عَلَيْهِ أَجْرًا إِنْ أَجْرِىَ إِلاَّ عَلَى الَّذِى فَطَرَنِى أَفَلاَ تَعْقِلُونَ - وَيَقَوْمِ اسْتَغْفِرُواْ رَبَّكُمْ ثُمَّ تُوبُواْ إِلَيْهِ يُرْسِلِ السَّمَآءَ عَلَيْكُمْ مِّدْرَاراً وَيَزِدْكُمْ قُوَّةً إِلَى قُوَّتِكُمْ وَلاَ تَتَوَلَّوْاْ مُجْرِمِينَ ﴾

(50. And to the `Ad (people We sent) their brother Hud. He said, "O my people! Worship Allah! You have no other god but Him. Certainly, you do nothing but invent lies!) (51. "O my people I ask of you no reward for it (the Message). My reward is only from Him Who created me. Will you not then understand'') (52. "And O my people! Ask forgiveness of your Lord and then repent to Him, He will send you (from the sky) abundant rain, and add strength to your strength, so do not turn away as criminals.'')