We have revealed the Qur'an to you gradually; 23 Wherefore persevere thou with the commandment of thy Lord, and obey not thou of them, any sinner or ingrate. 24 And mention the name of your Lord [in prayer] morning and evening 25 And part of the night, prostrate thyself to Him; and glorify Him a long night through. 26 As to these, they love the fleeting life, and put away behind them a Day (that will be) hard. 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 Verily this is an admonition; then whosoever will, may choose a way unto his Lord. 29 But you cannot will it unless God wills [to show you that way] -- God is indeed all-knowing and wise -- 30 He admits whom He wills into His mercy; but the wrongdoers - He has prepared for them a painful punishment. 31