The Cow
مَثَلُهُمْ كَمَثَلِ ٱلَّذِى ٱسْتَوْقَدَ نَارًا فَلَمَّآ أَضَآءَتْ مَا حَوْلَهُۥ ذَهَبَ ٱللَّهُ بِنُورِهِمْ وَتَرَكَهُمْ فِى ظُلُمَـٰتٍ لَّا يُبْصِرُونَ
Their example is that of one who kindled a fire, but when it illuminated what was around him, Allah took away their light and left them in darkness [so] they could not see.
Nearby ayahs help place verse 2:17 in sequence and meaning.
ٱللَّهُ يَسْتَهْزِئُ بِهِمْ وَيَمُدُّهُمْ فِى طُغْيَـٰنِهِمْ يَعْمَهُونَ
[But] Allah mocks them and prolongs them in their transgression [while] they wander blindly.
أُو۟لَـٰٓئِكَ ٱلَّذِينَ ٱشْتَرَوُا۟ ٱلضَّلَـٰلَةَ بِٱلْهُدَىٰ فَمَا رَبِحَت تِّجَـٰرَتُهُمْ وَمَا كَانُوا۟ مُهْتَدِينَ
Those are the ones who have purchased error [in exchange] for guidance, so their transaction has brought no profit, nor were they guided.
صُمٌّۢ بُكْمٌ عُمْىٌ فَهُمْ لَا يَرْجِعُونَ
Deaf, dumb and blind - so they will not return [to the right path].
أَوْ كَصَيِّبٍ مِّنَ ٱلسَّمَآءِ فِيهِ ظُلُمَـٰتٌ وَرَعْدٌ وَبَرْقٌ يَجْعَلُونَ أَصَـٰبِعَهُمْ فِىٓ ءَاذَانِهِم مِّنَ ٱلصَّوَٰعِقِ حَذَرَ ٱلْمَوْتِ ۚ وَٱللَّهُ مُحِيطٌۢ بِٱلْكَـٰفِرِينَ
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 Allah is encompassing of the disbelievers.