We have indeed, sent down to you the Koran, a (clear) sending, 23 So persevere with the command of your Lord and do not pay any heed to the wicked and the unbelieving, 24 And remember the name of your Lord morning and evening. 25 and prostrate yourself before Him at night, and extol His Glory during the long watches of the night. 26 Indeed these people love what they have, the fleeting one, and have forsaken the immensely important day behind them. 27 It is We Who created them, and We have made their joints strong; but, when We will, We can substitute the like of them by a complete change. 28 This is indeed an advice; so whoever wishes may take the path towards his Lord. 29 And you do not will except that Allah wills. Indeed, Allah is ever 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