Verily We! it is We Who have revealed unto thee the Qur'an, a gradual revelation. 23 So persevere with the command of your Lord and do not pay any heed to the wicked and the unbelieving, 24 And glorify the name of your Lord morning and evening. 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 Indeed, these love the hasty life, and are heedless and leave behind them a heavy Day. 27 We created them, and We strengthened their joints, but, when We will, We shall indeed exchange their likes. 28 This surely is a reminder: Therefore whosoever desires may take the way to his Lord. 29 Yet ye will not, unless Allah willeth. Lo! Allah is Knower, Wise. 30 He will admit to His Mercy whom He will; But the wrong-doers,- for them has He prepared a grievous Penalty. 31