Indeed, it is We who have sent down to you, [O Muhammad], the Qur'an progressively. 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 and in the night prostrate to Him; and exalt Him for a long night. 26 Surely these men love the hasty world, and leave be behind them a heavy day. 27 It is We Who created them, and strengthened their skeleton; and We can replace them with others like them, whenever We will. 28 This is indeed an advice; so whoever wishes may take the path towards his Lord. 29 And you do not will except that Allah wills. Indeed, Allah is ever Knowing and Wise. 30 He makes whom He pleases to enter into His mercy; and (as for) the unjust, He has prepared for them a painful chastisement. 31