وَلَوۡ شَآءَ ٱللَّهُ لَجَعَلَهُمۡ أُمَّةٗ وَٰحِدَةٗ وَلَٰكِن يُدۡخِلُ مَن يَشَآءُ فِي رَحۡمَتِهِۦۚ وَٱلظَّـٰلِمُونَ مَا لَهُم مِّن وَلِيّٖ وَلَا نَصِيرٍ

Had Allah wished, He would have surely made them one community; but He admits whomever He wishes into His mercy, and the wrongdoers do not have any guardian or helper.