أَفَأَمِنوا أَن تَأتِيَهُم غاشِيَةٌ مِن عَذابِ اللَّهِ أَو تَأتِيَهُمُ السّاعَةُ بَغتَةً وَهُم لا يَشعُرونَ

Then do they feel secure that there will not come to them an overwhelming [aspect] of the punishment of Allah or that the Hour will not come upon them suddenly while they do not perceive?