Truly, it is We who have revealed to you the Quran, a gradual revelation. 23 Wherefore persevere thou with the commandment of thy Lord, and obey not thou of them, any sinner or ingrate. 24 Remember the name of thy Lord at morn and evening. 25 And during the night prostrate to Him and exalt Him a long [part of the] night. 26 Verily they love (the good of this world) that is hastily obtainable and are oblivious of the burdensome Day ahead of them. 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 This is a reminder. Let whoever wishes, take the right path to his Lord. 29 And ye will not, unless Allah willeth. Verily Allah is ever Knowing, Wise. 30 He admits to His Mercy whomsoever He pleases. As for the wrong-doers, He has prepared for them a grievous chastisement. 31