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 during part of the night adore Him, and give glory to Him (a) long (part of the) night. 26 As to these, they love the fleeting life, and put away behind them a Day (that will be) hard. 27 It is We Who created them, and We have made them of strong built. And when We will, We can replace them with others like them with a complete replacement. 28 This is a reminder. Let whoever wishes, take the right path to his Lord. 29 And you do not will except that Allah wills. Indeed, Allah is ever Knowing and Wise. 30 He admits to His Mercy whomsoever He pleases. As for the wrong-doers, He has prepared for them a grievous chastisement. 31