Surely We have sent down the Koran on thee, a sending down; 23 Therefore wait patiently for the command of your Lord, and obey not from among them a sinner or an ungrateful one. 24 Mention the Name of your Lord, mornings and evenings. 25 And worship Him (a portion) of the night. And glorify Him through the livelong night. 26 Verily those love the herein, and leave in front of them a heavy day. 27 We, even We, created them, and strengthened their frame. And when We will, We can replace them, bringing others like them in their stead. 28 This is indeed an advice; so whoever wishes may take the path towards his Lord. 29 And what will you wish, except if Allah wills; indeed Allah is All Knowing, Wise. 30 He maketh whom He will to enter His mercy, and for evil-doers hath prepared a painful doom. 31