The Quran

110

وَلَقَد آتَينا موسَى الكِتابَ فَاختُلِفَ فيهِ ۚ وَلَولا كَلِمَةٌ سَبَقَت مِن رَبِّكَ لَقُضِيَ بَينَهُم ۚ وَإِنَّهُم لَفي شَكٍّ مِنهُ مُريبٍ

Muhammad Asad

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;¹ 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]:²: for, behold, they were in grave doubt, amounting to suspicion, about him [who called them unto God].³

Lit., "and it was disagreed upon", or "discordant views came to be held about it": meaning that, like Muhammad's early contemporaries, some of Moses' people accepted the divine writ, whereas others refused to submit to its guidance.
Lit., "it would indeed have been decided between them" - i.e., they would have been punished, like those communities of old, by utter destruction, had it not been for God's decree (kalimah, lit., "word") that their punishment should be deferred until the Day of Resurrection (cf. the last sentence of 10:93 and the corresponding note 114).
Cf. 2:55 - "O Moses, indeed we shall not believe thee until we see God face to face!"