Assuredly We vouchsafed the Book unto Musa; so be thou not in doubt in thy receiving it. And We appointed it to be a guidance unto the Children of Is'rail. 23 When they persevered and firmly believed Our revelations We appointed learned men among them who guided them by Our command. 24 Surely your Lord will decide between them about what they were at variance, on the Day of Resurrection. 25 [But] can, then, they [who deny the truth] learn no lesson by recalling how many a generation We have destroyed before their time? [people] in whose dwelling-places they [themselves now] walk about? In this, behold, there are messages indeed: will they not, then, listen? 26 Have they not seen that We drive the water [in clouds] to barren land and bring forth thereby crops from which their livestock eat and [they] themselves? Then do they not see? 27 They say: "When will this decision be, if ye are telling the truth?" 28 Tell them: “If the unbelievers were to believe on the Day of Judgement that will not avail them. For then they will be granted no respite.” 29 So withdraw from them (O Muhammad), and await (the event). Lo! they (also) are awaiting (it). 30