إِن يَمْسَسْكُمْ قَرْحٌ فَقَدْ مَسَّ ٱلْقَوْمَ قَرْحٌ مِّثْلُهُۥ ۚ وَتِلْكَ ٱلْأَيَّامُ نُدَاوِلُهَا بَيْنَ ٱلنَّاسِ وَلِيَعْلَمَ ٱللَّهُ ٱلَّذِينَ ءَامَنُوا۟ وَيَتَّخِذَ مِنكُمْ شُهَدَآءَ ۗ وَٱللَّهُ لَا يُحِبُّ ٱلظَّـٰلِمِينَ
If a wound should touch you - there has already touched the [opposing] people a wound similar to it. And these days [of varying conditions] We alternate among the people so that Allāh may make evident those who believe and [may] take to Himself from among you martyrs - and Allāh does not like the wrongdoers -
Dimensional Analysis
Context
So lose not heart, nor fall into despair: For ye must gain mastery if ye are true in Faith.
If a wound hath touched you, be sure a similar wound hath touched the others. Such days (of varying fortunes) We give to men and men by turns: that Allah may know those that believe, and that He may take to Himself from your ranks Martyr-witnesses (to Truth). And Allah loveth not those that do wrong.
Allah's object also is to purge those that are true in Faith and to deprive of blessing Those that resist Faith.
Related Verses
واللهُ أعلمُ بالصَّواب