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 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 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 And they say, “When will this decision take place, if you are truthful?” 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 Therefore turn away from them and wait as they are waiting. 30