Truly, it is We who have revealed to you the Quran, a gradual revelation. 23 So wait patiently for the command of your Lord, and do not yield to anyone among them who is sinful or ungrateful; 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 those love the herein, and leave in front of them a heavy day. 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 Indeed, this is a reminder, so he who wills may take to his Lord a way. 29 And ye will not, unless Allah willeth. Verily Allah is ever Knowing, 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