He says:

وَهُوَ الَّذِي ذَرَأَكُمْ فِي الْأَرْضِ وَإِلَيْهِ تُحْشَرُونَ ﴿٧٩﴾

And it is He Who has created you on the earth, and to Him you shall be gathered back.

Allah tells us about His great power and overwhelming authority, for He is the One Who originated creation and put people in all parts of the earth, with their different nations, languages and characteristics, then on the Day of Resurrection He will gather them all together, the first of them and the last, at a fixed time on a day appointed, and none will be left out, young or old, male or female, noble or insignificant, but all will be brought back as they were originally created.

Allah said:

وَهُوَ الَّذِي يُحْيِي وَيُمِيتُ ...

And it is He Who gives life and causes death,

meaning, He will bring the scattered bones back to life and cause the death of the nations,

... وَلَهُ اخْتِلَافُ اللَّيْلِ وَالنَّهَارِ ...

and His is the alternation of night and day.

meaning, by His command night and day are subjugated, each of them following the other and never departing from that pattern, as Allah says:

لاَ الشَّمْسُ يَنبَغِى لَهَآ أَن تدْرِكَ القَمَرَ وَلاَ الَّيْلُ سَابِقُ النَّهَارِ

It is not for the sun to overtake the moon, nor does the night outstrip the day. (36:40)