Yunus 10:19
SAHIHوَمَا كَانَ ٱلنَّاسُ إِلَّآ أُمَّةًۭ وَٰحِدَةًۭ فَٱخْتَلَفُوا۟ ۚ وَلَوْلَا كَلِمَةٌۭ سَبَقَتْ مِن رَّبِّكَ لَقُضِىَ بَيْنَهُمْ فِيمَا فِيهِ يَخْتَلِفُونَ
And mankind was not but one community [united in religion], but [then] they differed. And if not for a word that preceded from your Lord, it would have been judged between them [immediately] concerning that over which they differ.
Wa maa kaanan naasu illaaa ummmatanw waahidatan fakh talafoo; wa law laa kalimatun sabaqat mir Rabbika laqudiya bainahum fee maa feehi yakhtalifoon
Tafsir (Commentary)
<h2>What do the Idolators believe about Their Gods</h2><p>Allah reproaches the idolators that worshipped others beside Allah, thinking that those gods would intercede for them before Allah. Allah states that these gods do not harm or benefit. They don't have any authority over anything, nor do they own anything. These gods can never do what the idolators had claimed about them. That is why Allah said: </p><div class="arabic uthmani">قُلْ أَتُنَبِّئُونَ اللَّهَ بِمَا لاَ يَعْلَمُ فِى السَّمَـوَتِ وَلاَ فِى الاٌّرْضِ</div><p>(Say: `Do you inform Allah of that which He knows not in the heavens and on the earth') Ibn Jarir said: "This means, `Are you telling Allah about what may not happen in the heavens and earth' Allah then announced that His Glorious Self is far above their Shirk and Kufr by saying: </p><div class="arabic uthmani">سُبْحَانَهُ وَتَعَالَى عَمَّا يُشْرِكُونَ</div><p>(Glorified and Exalted is He above all that which they associate as partners (with Him)!)</p><h2>Shirk is New</h2><p>Allah then tells us that Shirk was new among mankind. It was not in existence in the beginning. He tells us that people were believers in one religion and that religion was Islam. Ibn `Abbas said: "There were ten centuries between Adam and Nuh. They were all on Islam. …
Other Translations
Mankind were but one community; then they differed; and had it not been for a word that had already gone forth from thy Lord it had been judged between them in respect of that wherein they differ.
Mankind was but one nation, but differed (later). Had it not been for a word that went forth before from thy Lord, their differences would have been settled between them.
Mankind were but one community (i.e. on one religion - Islamic Monotheism), then they differed (later), and had not it been for a Word that went forth before from your Lord, it would have been settled between them regarding what they differed.
Mankind was a single community; then they differed. Were it not for a prior decree from your Lord, the matters over which they had disputed would have been settled.