Word by Word Analysis

أَوْ كَصَيِّبٍ مِّنَ ٱلسَّمَآءِ فِيهِ ظُلُمَـٰتٌ وَرَعْدٌ وَبَرْقٌ يَجْعَلُونَ أَصَـٰبِعَهُمْ فِىٓ ءَاذَانِهِم مِّنَ ٱلصَّوَٰعِقِ حَذَرَ ٱلْمَوْتِ ۚ وَٱللَّهُ مُحِيطٌۢ بِٱلْكَـٰفِرِينَ 19

Or [it is] like a rainstorm from the sky within which is darkness, thunder and lightning. They put their fingers in their ears against the thunderclaps in dread of death. But Allāh is encompassing of the disbelievers.