Ibn Al-Qayyim rahimahullah said:

"The entire Qur'ān is a source of healing...It serves as a remedy for the hearts, curing them of the afflictions of ignorance, doubt, and uncertainty. Allāh Almighty has never revealed from the heavens a cure more comprehensive, beneficial, or greater in removing ailments than the Qur'ān."

ابن القيم | الداء والدواء صـ (۱۳) .

Surah 9 : 22

خَـٰلِدِينَ فِيهَآ أَبَدًا ۚ إِنَّ ٱللَّهَ عِندَهُۥٓ أَجْرٌ عَظِيمٌۭ

to stay there for ever and ever.
Surely with Allah is a great reward.

Surah 9 : 21

يُبَشِّرُهُمْ رَبُّهُم بِرَحْمَةٍۢ مِّنْهُ وَرِضْوَٰنٍۢ وَجَنَّـٰتٍۢ لَّهُمْ فِيهَا نَعِيمٌۭ مُّقِيمٌ

Their Lord gives them good news of His mercy, pleasure, and Gardens with everlasting bliss,

Surah 55 : 26/27

كُلُّ مَنْ عَلَيْهَا فَانٍۢ
Every being on earth is bound to perish.

وَيَبْقَىٰ وَجْهُ رَبِّكَ ذُو ٱلْجَلَـٰلِ وَٱلْإِكْرَامِ
Only your Lord Himself, full of Majesty and Honour, will remain ˹forever˺.

Surah 10 : 12

وَإِذَا مَسَّ ٱلْإِنسَـٰنَ ٱلضُّرُّ دَعَانَا لِجَنۢبِهِۦٓ أَوْ قَاعِدًا أَوْ قَآئِمًۭا فَلَمَّا كَشَفْنَا عَنْهُ ضُرَّهُۥ مَرَّ كَأَن لَّمْ يَدْعُنَآ إِلَىٰ ضُرٍّۢ مَّسَّهُۥ ۚ كَذَٰلِكَ زُيِّنَ لِلْمُسْرِفِينَ مَا كَانُوا۟ يَعْمَلُونَ

Whenever someone is touched by hardship, they cry out to Us, whether lying on their side, sitting, or standing.
But when We relieve their hardship, they return to their old ways as if they had never cried to Us to remove any hardship!
This is how the misdeeds of the transgressors have been made appealing to them.

Surah 51 : 50

وَذَكِّرْ فَإِنَّ ٱلذِّكْرَىٰ تَنفَعُ ٱلْمُؤْمِنِينَ

But (continue to) remind.
For certainly reminders benefit the believers.