إِلّا تَنفِروا يُعَذِّبكُم عَذابًا أَليمًا وَيَستَبدِل قَومًا غَيرَكُم وَلا تَضُرّوهُ شَيئًا ۗ وَاللَّهُ عَلىٰ كُلِّ شَيءٍ قَديرٌ

If you don’t mobilize, He will inflict a severe punishment upon you and replace you with another people. And you won’t harm Him in the least. God is capable of all things.