It is We Who have sent down the Qur'an to thee by stages. 23 Wherefore persevere thou with the commandment of thy Lord, and obey not thou of them, any sinner or ingrate. 24 And, remember the Name of your Lord at the dawn and in the evening; 25 And part of the night, prostrate thyself to Him; and glorify Him a long night through. 26 Surely these men love the hasty world, and leave be behind them a heavy day. 27 It is We Who creared them and made them firm of make. And whenever We list, We can replace them with others like unto them. 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 unto His grace everyone who wills [to be admitted]; but as for the evildoers - for them has He readied grievous suffering [in the life to come]. 31