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 And We placed firm mountains on earth lest it should sway with them, and We made wide paths in them that they may find their way; 31 We established the heaven as a well protected roof, yet they still turn away from its signs. 32 And He it is Who created the night and the day and the sun and the moon; all (orbs) travel along swiftly in their celestial spheres. 33 We have never assigned immortality to a human before you, therefore, if you yourself die, will they live for ever? 34 Every living being shall taste death and We shall subject you to ill and good by way of trial, and to Us shall all of you be eventually sent back. 35 When the unbelievers see you, they take you only for mockery, saying: 'Is this he who talks about your gods' While they are unbelievers in the Remembrance of the Merciful. 36 The human was created of haste. Indeed, I will show you My signs; so do not ask Me to hasten them. 37 And they say: When will this promise (be fulfilled), if ye are 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 [the Last Hour] will come upon them of a sudden, and will stupefy them: and they will be unable to avert it, and neither wilt they be allowed any respite. 40 Before you, other Messengers were mocked, but the mockers were encompassed by the very thing they mocked. 41