We have indeed, sent down to you the Koran, a (clear) sending, 23 Wherefore persevere thou with the commandment of thy Lord, and obey not thou of them, any sinner or ingrate. 24 And glorify the name of your Lord morning and evening. 25 And during part of the night adore Him, and give glory to Him (a) long (part of the) night. 26 Indeed, these [disbelievers] love the immediate and leave behind them a grave Day. 27 It was We who created them and made their constitution strong, but if We wish we can replace them with others like them. 28 Indeed, this is a reminder, so he who wills may take to his Lord a way. 29 Yet ye will not, unless Allah willeth. Lo! Allah is Knower, Wise. 30 He admits into His mercy, whomever He wills; and for the unjust He has kept prepared a painful punishment. 31