The futility of material strength without divine favor

وَكَأَيِّن مِّن قَرْيَةٍ هِىَ أَشَدُّ قُوَّةً مِّن قَرْيَتِكَ ٱلَّتِىٓ أَخْرَجَتْكَ أَهْلَكْنَـٰهُمْ فَلَا نَاصِرَ لَهُمْ

And how many a city was stronger than your city [i.e., Makkah] which drove you out? We destroyed them; and there was no helper for them.