إِلَٰهُكُمْ إِلَٰهٌ وَاحِدٌ ۚ فَالَّذِينَ لَا يُؤْمِنُونَ بِالْآخِرَةِ قُلُوبُهُم مُّنكِرَةٌ وَهُم مُّسْتَكْبِرُونَ (22)
(16:22) Your Deity is One Allah, but the hearts of those, who do not believe in the Hereafter, are given to denial, and they are puffed up with pride. *20
*20) That is, "Those who do not believe in the life in the Hereafter, have become so irresponsible, care-free and intoxicated with the life of this world, that they feel no hesitation or pang in denying any reality, and they put no value on or attach no worth to truth. That -is why, they are not prepared to impose any moral restraint on themselves and feel no need to investigate as to whether the way, they are following, is right or wrong.