﴿ وَلَقَدْ ءَاتَيْنَا مُوسَى ٱلْكِتَٰبَ فَٱخْتُلِفَ فِيهِ ۚ وَلَوْلَا كَلِمَةٌۭ سَبَقَتْ مِن رَّبِّكَ لَقُضِىَ بَيْنَهُمْ ۚ وَإِنَّهُمْ لَفِى شَكٍّۢ مِّنْهُ مُرِيبٍۢ ﴾

“And, indeed, [similar was the case when] We vouchsafed the divine writ unto Moses, and some of his people set their own views against it; and had it not been for a decree that had already gone forth from thy Sustainer, judgment would indeed have been passed on them [then and there]: for, behold, they were in grave doubt, amounting to suspicion, about him [who called them unto God].”

(And We verily gave unto Moses the Scripture) i.e. the Torah, (and there was strife thereupon) about the Scripture of Moses: some believed in it while others did not; (and had it not been for a Word that had already gone forth) enjoined (from thy Lord) to delay His chastisement from your nation, (the case would have been judged between them) their destruction would have already happened and chastisement would have seized them, (and Lo! they are in grave doubt) manifest doubt (concerning it).