And if the turning away of these polytheists and their departure from responding to your call became great upon you-O Messenger-, then if you were able that you take a tunnel in the earth, or a ladder you ascend in it to the heaven, then you come to them with a sign and a proof on the correctness of your word other than that which We brought them with then do [so]. And had Allah willed He would surely have gathered them upon the guidance which you are upon and granted them success for faith, but He did not will that for a wisdom He Glorified be He knows, so do not be-O Messenger-of the ignorant whose sadness became intense, and they grieved until that reached them to the intense anguish.