وَلَوْ شَاءَ اللَّهُ لَجَعَلَكُمْ أُمَّةً وَاحِدَةً وَلَكِن يُضِلُّ مَن يَشَاءُ وَيَهْدِي مَن يَشَاءُ وَلَتُسْأَلُنَّ عَمَّا كُنتُمْ تَعْمَلُونَ

Had Allah wished, He would have made you one community, but He leads astray whomever He wishes and guides whomever He wishes, and you will surely be questioned concerning what you used to do.