We have revealed the Qur'an to you gradually; 23 Therefore wait patiently for the command of your Lord, and obey not from among them a sinner or an ungrateful one. 24 Remember the name of thy Lord at morn 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 We have created them and have given them strength. Had We wanted, We could have replaced them with another people like them. 28 Verily this is an Exhortation; so let him who so will take a way 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