اَوْ كَظُلُمٰتٍ فِيْ بَحْرٍ لُّجِّيٍّ يَّغْشٰىهُ مَوْجٌ مِّنْ فَوْقِهٖ مَوْجٌ مِّنْ فَوْقِهٖ سَحَابٌۗ ظُلُمٰتٌۢ بَعْضُهَا فَوْقَ بَعْضٍۗ اِذَآ اَخْرَجَ يَدَهٗ لَمْ يَكَدْ يَرٰىهَاۗ وَمَنْ لَّمْ يَجْعَلِ اللّٰهُ لَهٗ نُوْرًا فَمَا لَهٗ مِنْ نُّوْرٍ ࣖ ( النور: ٤٠ )
Aw kazulumaatin fee bahril lujjiyyiny yaghshaahu mawjum min fawqihee mawjum min fawqihee mawjum min fawqihee sahaab; zulumatum ba'duhaa fawqa ba'din izaaa akhraja yadahoo lam yakad yaraahaa wa mal lam yaj'alil laahu lahoo noora famaa lahoo min noor (an-Nūr 24:40)
Or [they are] like darknesses within an unfathomable sea which is covered by waves, upon which are waves, over which are clouds – darknesses, some of them upon others. When one puts out his hand [therein], he can hardly see it. And he to whom Allah has not granted light – for him there is no light. (An-Nur  : 40)
1 Mufti Taqi Usmani
Or (their deeds) are like layers of darkness in a vast deep sea overwhelmed by a wave, above which there is another wave, above which there are clouds - layers of darkness, one above the other. When one puts forth his hand, he can hardly see it; and the one to whom Allah does not give light can have no light at all.