Quran english hud 118

ولو شاء ربك لجعل الناس أمة واحدة ولا يزالون مختلفين

Walaw shaa rabbuka lajaAAala annasaommatan wahidatan wala yazaloonamukhtalifeen

 
Sahih International
And if your Lord had willed, He could have made mankind one community; but they will not cease to differ.
Muhsin Khan
And if your Lord had so willed, He could surely have made mankind one Ummah [nation or community (following one religion only i.e. Islam)], but they will not cease to disagree,
Pickthall
And if thy Lord had willed, He verily would have made mankind one nation, yet they cease not differing,
Yusuf Ali
If thy Lord had so willed, He could have made mankind one people: but they will not cease to dispute.
Shakir
And if your Lord had pleased He would certainly have made people a single nation, and they shall continue to differ.
Dr. Ghali
And if your Lord had (so) decided, He would indeed have made mankind one nation; and (i.e., but) they do not cease differing (among themselves).