Indeed, it is We who have sent down to you, [O Muhammad], the Qur'an progressively. 23 Therefore wait patiently for the command of your Lord, and obey not from among them a sinner or an ungrateful one. 24 and bear in mind thy Sustainer's name at morn and evening 25 And during the night prostrate to Him and exalt Him a long [part of the] night. 26 Verily those love the herein, and leave in front of them a heavy day. 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 Indeed, this is a reminder, so he who wills may take to his Lord a way. 29 But ye will not, except as Allah wills; for Allah is full of Knowledge and Wisdom. 30 He admits to His Mercy whomsoever He pleases. As for the wrong-doers, He has prepared for them a grievous chastisement. 31