﴿ وَحِيلَ بَيْنَهُمْ وَبَيْنَ مَا يَشْتَهُونَ كَمَا فُعِلَ بِأَشْيَاعِهِم مِّن قَبْلُ ۚ إِنَّهُمْ كَانُوا۟ فِى شَكٍّۢ مُّرِيبٍۭ ﴾

“And so, a barrier will be set between them and all that they had [ever] desired, as will be done to such of their kind as lived before their time: for, behold, they [too] were lost in doubt amounting to suspicion.”

And a barrier is set between them and what they crave in the way of faith — in other words their craving to embrace it — just as was done with their counterparts in respect to disbelief formerly in other words before them. Indeed they used to be in grave doubt doubt causing them to have misgivings about that in which they now believe but the proofs for which they never considered in this world.