We did indeed aforetime give the Book to Moses: be not then in doubt of its reaching (thee): and We made it a guide to the Children of Israel. 23 and when they remained steadfast and firmly believed in Our Signs, We created among them leaders who guided people by Our command. 24 On the Day of Resurrection your Lord will distinguish between them that on which they varied. 25 Is it not a guidance for them (to observe) how many generations We destroyed before them, amid whose dwelling places they do walk? Lo! therein verily are portents! Will they not then heed? 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 They also ask: 'When will this Opening come, if what you say is true' 28 Say: "Of no use will be the acceptance of belief to unbelievers on the Day of Decision, nor will they be granted respite. 29 So turn away from them, and wait: they too are waiting. 30