Truly, it is We who have revealed to you the Quran, a gradual revelation. 23 So wait patiently for the command of your Lord, and do not yield to anyone among them who is sinful or ungrateful; 24 And remember thou the name of thy Lord in the morning and in the 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 Lo! these love fleeting life, and put behind them (the remembrance of) a grievous day. 27 We created them and made firm their make, and when We please We will bring in their place the likes of them by a change. 28 This surely is a reminder: Therefore whosoever desires may take the way to his Lord. 29 But you will not desire except as God wills. Verily He is all-knowing and all-wise. 30 He admits to His Mercy whomsoever He pleases. As for the wrong-doers, He has prepared for them a grievous chastisement. 31