And if their aversion to Islam is grievous too great for you on account of your concern for them then if you can seek out a hole an underground passage in the earth or a ladder a stairway to heaven that you may bring them a sign from among those they have requested then go ahead the meaning is that you will not be able to do this so be patient until God delivers His judgement — but had God willed to guide them He would have gathered them together in guidance but He did not will this and so they do not believe; so do not be among the ignorant of this matter.