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 celebrate the name of thy Lord morning and evening, 25 Prostrate before Him and glorify Him extensively during the night. 26 Surely these men love the hasty world, and leave be behind them a heavy day. 27 We created them, and We strengthened their joints; and, when We will, We shall exchange their likes. 28 Verily this is an admonition; then whosoever will, may choose a way unto his Lord. 29 But you will not desire except as God wills. Verily He is all-knowing and all-wise. 30 He admits whoever He will into His grace and has prepared a painful punishment for the evil doers. 31