Truly, it is We who have revealed to you the Quran, a gradual revelation. 23 Wherefore persevere thou with the commandment of thy Lord, and obey not thou of them, any sinner or ingrate. 24 And celebrate the name of thy Lord morning and evening, 25 Prostrate before Him and glorify Him extensively during the night. 26 As to these, they love the fleeting life, and put away behind them a Day (that will be) hard. 27 [They will not admit to themselves that] it We who have created them and strengthened their make - and [that] if it be Our will We can replace them entirely with others of their kind. 28 This is indeed a Reminder, so that he who will, takes a path to his Lord. 29 But you will not unless God wills; surely God is ever All-knowing, All-wise. 30 He admits into His mercy, whomever He wills; and for the unjust He has kept prepared a painful punishment. 31