Verse 53

وَكَذَٰلِكَ فَتَنَّا بَعْضَهُم بِبَعْضٍ لِّيَقُولُوٓا۟ أَهَـٰٓؤُلَآءِ مَنَّ ٱللَّهُ عَلَيْهِم مِّنۢ بَيْنِنَآ أَلَيْسَ ٱللَّهُ بِأَعْلَمَ بِٱلشَّـٰكِرِينَ

We thus test some through others in order for them to say, are these the ones that God has blessed from amongst us? Does God not know best those who are appreciative?