Translation for 47:24

أَفَلَا يَتَدَبَّرُونَ ٱلۡقُرۡءَانَ أَمۡ عَلَىٰ قُلُوبٍ أَقۡفَالُهَآ ٢٤
Do they not then reflect on the Quran? Or are there locks upon their hearts?