And if their turning away is hard on you, then if you can seek an opening (to go down) into the earth or a ladder (to ascend up) to heaven so that you should bring them a sign and if Allah had pleased He would certainly have gathered them all on guidance, therefore be not of the ignorant.

Hasten to forgiveness from your Lord and to a garden the extensiveness of which is as the extensiveness of the heaven and the earth; it is prepared for those who believe in Allah and His messengers; that is the grace of Allah: He gives it to whom He pleases, and Allah is the Lord of mighty grace.