وَحِيلَ بَيۡنَهُمۡ وَبَيۡنَ مَا يَشۡتَهُونَ كَمَا فُعِلَ بِأَشۡيَاعِهِم مِّن قَبۡلُۚ إِنَّهُمۡ كَانُواْ فِي شَكّٖ مُّرِيبِۭ
And a barrier was interposed between them and what they desire (i.e., repentance) as was performed to sects similar to them earlier; surely they were in doubt, causing suspicion.