We have indeed, sent down to you the Koran, a (clear) sending, 23 Therefore be patient with constancy to the Command of thy Lord, and hearken not to the sinner or the ingrate among them. 24 And, remember the Name of your Lord at the dawn and in the evening; 25 and during some of the night, and prostrate thyself before Him, and extol His limitless glory throughout the long night. 26 Surely these men love the hasty world, and leave be behind them a heavy day. 27 We created them, and We strengthened their joints, but, when We will, We shall indeed exchange their likes. 28 This is indeed a Reminder, so that he who will, takes a path to his Lord. 29 But you cannot will it unless God wills [to show you that way] -- God is indeed all-knowing and wise -- 30 He admits into His mercy, whomever He wills; and for the unjust He has kept prepared a painful punishment. 31