(Muhammad), We have revealed the Quran to you in gradual steps. 23 So submit patiently to thy Lord's command, and obey not of them any guilty one or disbeliever. 24 And celebrate the name of thy Lord morning and evening, 25 and during some of the night, and prostrate thyself before Him, and extol His limitless glory throughout the long night. 26 Those people [who are unmindful of God] aspire for immediate gains, and put behind them a Heavy Day. 27 We created them, and We strengthened their joints; and, when We will, We shall exchange their likes. 28 Surely this is a Reminder; so he who will, takes unto his Lord a way. 29 But you cannot will it unless God wills [to show you that way] -- God is indeed all-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