The Quran

وَلَقَد بَوَّأنا بَني إِسرائيلَ مُبَوَّأَ صِدقٍ وَرَزَقناهُم مِنَ الطَّيِّباتِ فَمَا اختَلَفوا حَتّىٰ جاءَهُمُ العِلمُ ۚ إِنَّ رَبَّكَ يَقضي بَينَهُم يَومَ القِيامَةِ فيما كانوا فيهِ يَختَلِفونَ

Muhammad Asad

And [thereafter], indeed, We assigned unto the children of Israel a most goodly abode,¹ and provided for them sustenance out of the good things of life. And it was not until knowledge [of God's revelation] was vouchsafed to them that they began to hold divergent views: [but,] verily, thy Sustainer will judge between them on Resurrection Day regarding all on which they were wont to differ.²

Lit., "We settled the children of Israel in an abode of excellence" - which latter term, according to almost all commentators, conveys the meaning of sidq in this context.
Commenting on this verse, Razi says: "The people of Moses remained of one religious persuasion ('ala millah wahidah) and of one opinion, without any disagreement, until they began to study the Torah: whereupon they became aware of the [various] problems and obligations involved, and disagreements [regarding their interpretation] arose among them. And so God makes it clear [in the above Qur'an-verse] that this kind of disagreement is inevitable (la-budd) and will always occur in the life of this world." Razi's penetrating psychological comment is in tune with the oft-repeated Qur'anic statement that proneness to intellectual dissension is a permanent characteristic of human nature (see the last sentences of 2:213 and 253, respectively, as well as the corresponding notes; also 23:53 and note 30).