80وَهُوَ الَّذي يُحيي وَيُميتُ وَلَهُ اختِلافُ اللَّيلِ وَالنَّهارِ ۚ أَفَلا تَعقِلونَ(Irfan-ul-Quran)And He is the One Who gives life and causes death and in His control is (also) the alternation of night and day. So do you not understand?