The destructive nature of arrogance (kibr)

قَالَ فَٱهْبِطْ مِنْهَا فَمَا يَكُونُ لَكَ أَن تَتَكَبَّرَ فِيهَا فَٱخْرُجْ إِنَّكَ مِنَ ٱلصَّـٰغِرِينَ

[Allāh] said, "Descend from it [i.e., Paradise], for it is not for you to be arrogant therein. So get out; indeed, you are of the debased."