The contrast between believers and disbelievers

وَمَا يَسْتَوِى ٱلْأَحْيَآءُ وَلَا ٱلْأَمْوَٰتُ ۚ إِنَّ ٱللَّهَ يُسْمِعُ مَن يَشَآءُ ۖ وَمَآ أَنتَ بِمُسْمِعٍ مَّن فِى ٱلْقُبُورِ

And not equal are the living and the dead. Indeed, Allāh causes to hear whom He wills, but you cannot make hear those in the graves.

إِنَّ فِى ٱلسَّمَـٰوَٰتِ وَٱلْأَرْضِ لَـَٔايَـٰتٍ لِّلْمُؤْمِنِينَ

Indeed, within the heavens and earth are signs for the believers.

فَكَيْفَ إِذَا تَوَفَّتْهُمُ ٱلْمَلَـٰٓئِكَةُ يَضْرِبُونَ وُجُوهَهُمْ وَأَدْبَـٰرَهُمْ

Then how [will it be] when the angels take them in death, striking their faces and their backs?