Word by Word Analysis

وَمَا كَانَ رَبُّكَ مُهْلِكَ ٱلْقُرَىٰ حَتَّىٰ يَبْعَثَ فِىٓ أُمِّهَا رَسُولًا يَتْلُوا۟ عَلَيْهِمْ ءَايَـٰتِنَا ۚ وَمَا كُنَّا مُهْلِكِى ٱلْقُرَىٰٓ إِلَّا وَأَهْلُهَا ظَـٰلِمُونَ 59

And never would your Lord have destroyed the cities until He had sent to their mother [i.e., principal city] a messenger reciting to them Our verses. And We would not destroy the cities except while their people were wrongdoers.