وَلَو شاءَ اللَّهُ لَجَعَلَكُم أُمَّةً واحِدَةً وَلـٰكِن يُضِلُّ مَن يَشاءُ وَيَهدي مَن يَشاءُ ۚ وَلَتُسأَلُنَّ عَمّا كُنتُم تَعمَلونَ

If God had willed, He could’ve made you one community, but He misguides whom He wills and guides whom He wills. You’ll be questioned about your actions.