Read Page 68 of the Quran

وَلِيُمَحِّصَ ٱللَّهُ ٱلَّذِينَ ءَامَنُوا۟ وَيَمْحَقَ ٱلْكَـٰفِرِينَ ﴿١٤١﴾

And that Allah may purify the believers [through trials] and destroy the disbelievers.

أَمْ حَسِبْتُمْ أَن تَدْخُلُوا۟ ٱلْجَنَّةَ وَلَمَّا يَعْلَمِ ٱللَّهُ ٱلَّذِينَ جَـٰهَدُوا۟ مِنكُمْ وَيَعْلَمَ ٱلصَّـٰبِرِينَ ﴿١٤٢﴾

Or do you think that you will enter Paradise while Allah has not yet made evident those of you who fight in His cause and made evident those who are steadfast?

وَلَقَدْ كُنتُمْ تَمَنَّوْنَ ٱلْمَوْتَ مِن قَبْلِ أَن تَلْقَوْهُ فَقَدْ رَأَيْتُمُوهُ وَأَنتُمْ تَنظُرُونَ ﴿١٤٣﴾

And you had certainly wished for martyrdom before you encountered it, and you have [now] seen it [before you] while you were looking on.

وَمَا مُحَمَّدٌ إِلَّا رَسُولٌۭ قَدْ خَلَتْ مِن قَبْلِهِ ٱلرُّسُلُ ۚ أَفَإِي۟ن مَّاتَ أَوْ قُتِلَ ٱنقَلَبْتُمْ عَلَىٰٓ أَعْقَـٰبِكُمْ ۚ وَمَن يَنقَلِبْ عَلَىٰ عَقِبَيْهِ فَلَن يَضُرَّ ٱللَّهَ شَيْـًۭٔا ۗ وَسَيَجْزِى ٱللَّهُ ٱلشَّـٰكِرِينَ ﴿١٤٤﴾

Muhammad is not but a messenger. [Other] messengers have passed on before him. So if he was to die or be killed, would you turn back on your heels [to unbelief]? And he who turns back on his heels will never harm Allah at all; but Allah will reward the grateful.

وَمَا كَانَ لِنَفْسٍ أَن تَمُوتَ إِلَّا بِإِذْنِ ٱللَّهِ كِتَـٰبًۭا مُّؤَجَّلًۭا ۗ وَمَن يُرِدْ ثَوَابَ ٱلدُّنْيَا نُؤْتِهِۦ مِنْهَا وَمَن يُرِدْ ثَوَابَ ٱلْـَٔاخِرَةِ نُؤْتِهِۦ مِنْهَا ۚ وَسَنَجْزِى ٱلشَّـٰكِرِينَ ﴿١٤٥﴾

And it is not [possible] for one to die except by permission of Allah at a decree determined. And whoever desires the reward of this world - We will give him thereof; and whoever desires the reward of the Hereafter - We will give him thereof. And we will reward the grateful.

وَكَأَيِّن مِّن نَّبِىٍّۢ قَـٰتَلَ مَعَهُۥ رِبِّيُّونَ كَثِيرٌۭ فَمَا وَهَنُوا۟ لِمَآ أَصَابَهُمْ فِى سَبِيلِ ٱللَّهِ وَمَا ضَعُفُوا۟ وَمَا ٱسْتَكَانُوا۟ ۗ وَٱللَّهُ يُحِبُّ ٱلصَّـٰبِرِينَ ﴿١٤٦﴾

And how many a prophet [fought and] with him fought many religious scholars. But they never lost assurance due to what afflicted them in the cause of Allah, nor did they weaken or submit. And Allah loves the steadfast.

وَمَا كَانَ قَوْلَهُمْ إِلَّآ أَن قَالُوا۟ رَبَّنَا ٱغْفِرْ لَنَا ذُنُوبَنَا وَإِسْرَافَنَا فِىٓ أَمْرِنَا وَثَبِّتْ أَقْدَامَنَا وَٱنصُرْنَا عَلَى ٱلْقَوْمِ ٱلْكَـٰفِرِينَ ﴿١٤٧﴾

And their words were not but that they said, "Our Lord, forgive us our sins and the excess [committed] in our affairs and plant firmly our feet and give us victory over the disbelieving people."

فَـَٔاتَىٰهُمُ ٱللَّهُ ثَوَابَ ٱلدُّنْيَا وَحُسْنَ ثَوَابِ ٱلْـَٔاخِرَةِ ۗ وَٱللَّهُ يُحِبُّ ٱلْمُحْسِنِينَ ﴿١٤٨﴾

So Allah gave them the reward of this world and the good reward of the Hereafter. And Allah loves the doers of good.