Truly, it is We who have revealed to you the Quran, a gradual revelation. 23 therefore be patient under the Judgement of your Lord, and do not obey either the sinner or the unbeliever. 24 Remember the name of thy Lord at morn and evening. 25 And worship Him (a portion) of the night. And glorify Him through the livelong night. 26 Verily! These (disbelievers) love the present life of this world, and put behind them a heavy Day (that will be hard). 27 It was We who created them and made their constitution strong, but if We wish we can replace them with others like them. 28 Surely this is a reminder, so whoever pleases takes to his Lord a way. 29 But your willing shall be of no avail until Allah Himself so wills. Surely Allah is All-Knowing, Most 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