(Muhammad), We have revealed the Quran to you in gradual steps. 23 Therefore wait patiently for the command of your Lord, and obey not from among them a sinner or an ungrateful one. 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 Verily those love the herein, and leave in front of them a heavy day. 27 We created them and strengthened their joints; and whenever We wish, We can change their faces entirely. 28 This is indeed an advice; so whoever wishes may take the path towards his Lord. 29 But you will not unless God wills; surely God is ever All-knowing, All-wise. 30 He maketh whomsoever He listeth to enter His mercy. And the wrong-doers! for them He hath gotten ready a torment afflective. 31