Ask them: "Who gives you food and sustenance from the skies and the earth? Or, who is the lord of ear and eye? And who brings forth the living from the dead, the dead from the living? And who directs all affairs?" They will say: "God." So tell them: "Why do you not fear Him?" 31 Such then is God, your true Lord; and when truth is gone what is left but error? So why do you turn away? 32 The decree of your Lord that the evil-doers will not have faith has already been issued. 33 Say: 'Is there any of your associates who originates creation, then brings it back again?' Say: 'God -- He originates creation, then brings it back again; so how are you perverted?' 34 Say thou: is there any of your associate-gods who guideth you to the truth! Say thou: Allah guideth unto the truth. Is He, then, who guideth to the truth more worthy to be followed, or one who findeth not the guidance unless he is guided. What aileth ye then? How ill ye judge! 35 Most of the unbelievers follow only conjecture which certainly cannot serve as a substitute for the Truth. God knows well what they do. 36 And this Qur'an is not such as could ever be invented in despite of Allah; but it is a confirmation of that which was before it and an exposition of that which is decreed for mankind - Therein is no doubt - from the Lord of the Worlds. 37 Do they say that the Messenger has himself composed the Qur'an? Say: 'In that case bring forth just one surah like it and call on all whom you can, except Allah, to help you if you are truthful. 38 Rather, they have denied that which they encompass not in knowledge and whose interpretation has not yet come to them. Thus did those before them deny. Then observe how was the end of the wrongdoers. 39 Of them there are some who believe therein, and some who do not: and thy Lord knoweth best those who are out for mischief. 40