People were but one single nation, then they differed among themselves in 10:19 Tafsir_English translation

﴿وَمَا كَانَ ٱلنَّاسُ إِلَّآ أُمَّةٗ وَٰحِدَةٗ فَٱخۡتَلَفُواْۚ وَلَوۡلَا كَلِمَةٞ سَبَقَتۡ مِن رَّبِّكَ لَقُضِيَ بَيۡنَهُمۡ فِيمَا فِيهِ يَخۡتَلِفُونَ ﴾
[يُونس: 19]

People were but one single nation, then they differed among themselves in opinion and each group cherished a certain view and belief and were altogether set at variance. Had it not been for Allah's word proclaimed beforehand to delay the decision on matters of doubt and dispute among them and to put punishment in respite, their Hereafter would have been planted in the now

ترجمة: وما كان الناس إلا أمة واحدة فاختلفوا ولولا كلمة سبقت من ربك, باللغة الإنجليزية تفسير

﴿وما كان الناس إلا أمة واحدة فاختلفوا ولولا كلمة سبقت من ربك﴾ [يُونس: 19]