Truly, it is We who have revealed to you the Quran, a gradual revelation. 23 So submit patiently to thy Lord's command, and obey not of them any guilty one or disbeliever. 24 Mention the Name of your Lord, mornings and evenings. 25 And during night, prostrate yourself to Him (i.e. the offering of Maghrib and 'Isha' prayers), and glorify Him a long night through (i.e. Tahajjud prayer). 26 Verily those love the herein, and leave in front of them a heavy day. 27 We created them and fixed their bones and joints; and We could replace them when We like with others like them. 28 This surely is a reminder: Therefore whosoever desires may take the way to his Lord. 29 But ye will not, except as Allah wills; for Allah is full of Knowledge and Wisdom. 30 For He admits into His mercy whomsoever He will; as for the evildoers, He has prepared for them a painful chastisement. 31