﴿ وَلَوْ شَآءَ رَبُّكَ لَجَعَلَ ٱلنَّاسَ أُمَّةًۭ وَٰحِدَةًۭ ۖ وَلَا يَزَالُونَ مُخْتَلِفِينَ ﴾

“And had thy Sustainer so willed, He could surely have made all mankind one single community: but [He willed it otherwise, and so] they continue to hold divergent views'”

(And if thy Lord had willed, He verily would have made mankind one nation) He would have gathered them to follow one religion: the religion of Islam, (yet they cease not) but they will always be (differing) concerning religion and falsehood,