Word by Word Analysis

أَفَأَمِنتُمْ أَن يَخْسِفَ بِكُمْ جَانِبَ ٱلْبَرِّ أَوْ يُرْسِلَ عَلَيْكُمْ حَاصِبًا ثُمَّ لَا تَجِدُوا۟ لَكُمْ وَكِيلًا 68

Then do you feel secure that [instead] He will not cause a part of the land to swallow you or send against you a storm of stones? Then you would not find for yourselves an advocate.