Spiritual deafness and heedlessness

قُلْ إِنَّمَآ أُنذِرُكُم بِٱلْوَحْىِ ۚ وَلَا يَسْمَعُ ٱلصُّمُّ ٱلدُّعَآءَ إِذَا مَا يُنذَرُونَ

Say, "I only warn you by revelation." But the deaf do not hear the call when they are warned.

فَإِنَّكَ لَا تُسْمِعُ ٱلْمَوْتَىٰ وَلَا تُسْمِعُ ٱلصُّمَّ ٱلدُّعَآءَ إِذَا وَلَّوْا۟ مُدْبِرِينَ

So indeed, you will not make the dead hear, nor will you make the deaf hear the call when they turn their backs, retreating.