cause human beings to disappear and bring forth other beings

إِن يَشَأْ يُذْهِبْكُمْ أَيُّهَا ٱلنَّاسُ وَيَأْتِ بِـَٔاخَرِينَ ۚ وَكَانَ ٱللَّهُ عَلَىٰ ذَٰلِكَ قَدِيرًا

If He so willed, He could remove you altogether and replace you with new people: He has full power to do so.

أَلَمْ تَرَ أَنَّ ٱللَّهَ خَلَقَ ٱلسَّمَـٰوَٰتِ وَٱلْأَرْضَ بِٱلْحَقِّ ۚ إِن يَشَأْ يُذْهِبْكُمْ وَيَأْتِ بِخَلْقٍ جَدِيدٍ

[Prophet], do you not see that God created the heavens and the earth for a purpose? He could remove all of you and replace you with a new creation if He wished to:

إِن يَشَأْ يُذْهِبْكُمْ وَيَأْتِ بِخَلْقٍ جَدِيدٍ

if He wills, He can do away with you and bring in a new creation,