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 and when they remained steadfast and firmly believed in Our Signs, We created among them leaders who guided people by Our command. 24 Verily thy Lord! He shall decide between them on the Day of Judgment concerning that wherein they have been differing. 25 Does it not teach them a lesson, how many generations We destroyed before them, in whose dwellings they (now) go to and fro? Verily in that are Signs: Do they not then listen? 26 Have they not seen how We drive water (rain clouds) to the dry land without any vegetation, and therewith bring forth crops providing food for their cattle and themselves? Will they not then see? 27 But they answer: "When will that final decision take place, if what you [believers] say is true?" 28 Say (unto them): On the day of the victory the faith of those who disbelieve (and who then will believe) will not avail them, neither will they be reprieved. 29 So turn away from them, and wait: they too are waiting. 30