﴿أَفَلَا يَتَدَبَّرُونَ الْقُرْآنَ أَمْ عَلَىٰ قُلُوبٍ أَقْفَالُهَا﴾ 24. Do they not then think deeply in the Qur’ân, or are their hearts locked up (from understanding it)?
