Truly, it is We who have revealed to you the Quran, a gradual revelation. 23 Therefore be patient with constancy to the Command of thy Lord, and hearken not to the sinner or the ingrate among them. 24 Mention the Name of your Lord, mornings and evenings. 25 And during the night prostrate to Him and exalt Him a long [part of the] night. 26 Surely these love the transitory and neglect a grievous day before them. 27 [They will not admit to themselves that] it We who have created them and strengthened their make - and [that] if it be Our will We can replace them entirely with others of their kind. 28 Verily this is an admonition; then whosoever will, may choose a way unto his Lord. 29 But ye will not, except as Allah wills; for Allah is full of Knowledge and Wisdom. 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