Have those who disbelieved not considered that the heavens and the earth were a joined entity, and We separated them and made from water every living thing? Then will they not believe? 30 We set firm mountains upon the earth lest it should shake with them, and We placed therein ravines to be paths so that they might be guided. 31 And we have made the sky a roof withheld (from them). Yet they turn away from its portents. 32 It is He who created the night and the day, and the sun and the moon, each gliding in its orbit. 33 We have never assigned immortality to a human before you, therefore, if you yourself die, will they live for ever? 34 Every soul must taste of death and We try you by evil and good by way of probation; and to Us you shall be brought back. 35 And when those who disbelieve behold thee they only take thee up for mockery: is this he who mentioneth your gods? while in the mention of the compassionate they are themselves blasphemers. 36 Man was created of haste, surely I shall show you My signs, so ask Me not to hasten. 37 And they say, "When is this promise, if you should be truthful?" 38 If only the unbelievers could apprehend the moment when they would neither be able to ward off the fire from their faces and their backs, nor help reach them! 39 Nay, but it shall come upon them suddenly, dumbfounding them, and they shall not be able to repel it, nor shall they be respited. 40 Other messengers have been mocked before you, but those who scoffed were overwhelmed by the very thing they had mocked. 41