﴿ ٱلَّذِى خَلَقَ ٱلْمَوْتَ وَٱلْحَيَوٰةَ لِيَبْلُوَكُمْ أَيُّكُمْ أَحْسَنُ عَمَلًۭا ۚ وَهُوَ ٱلْعَزِيزُ ٱلْغَفُورُ ﴾

“He who has created death as well as life, so that He might put you to a test [and thus show] which of you is best in conduct, and [make you realize that] He alone is almighty, truly forgiving.”

Please check ayah 67:5 for complete tafsir.