Divine omnipotence and causation

فَلَمْ تَقْتُلُوهُمْ وَلَـٰكِنَّ ٱللَّهَ قَتَلَهُمْ ۚ وَمَا رَمَيْتَ إِذْ رَمَيْتَ وَلَـٰكِنَّ ٱللَّهَ رَمَىٰ ۚ وَلِيُبْلِىَ ٱلْمُؤْمِنِينَ مِنْهُ بَلَآءً حَسَنًا ۚ إِنَّ ٱللَّهَ سَمِيعٌ عَلِيمٌ

And you did not kill them, but it was Allāh who killed them. And you threw not, [O Muḥammad], when you threw, but it was Allāh who threw that He might test the believers with a good test. Indeed, Allāh is Hearing and Knowing.