Say (unto them, O Muhammad): Who provideth for you from the sky and the earth, or Who owneth hearing and sight; and Who bringeth forth the living from the dead and bringeth forth the dead from the living; and Who directeth the course? They will say: Allah. Then say: Will ye not then keep your duty (unto Him)? 31 This then is Allah, your true Lord; and what is there after the truth but error; how are you then turned back? 32 Thus is the Word of thy Lord justified concerning those who do wrong: that they believe not. 33 Say thou: is there any of your associate-gods who originateth the creation and then repeateth it? Say thou: Allah originateth the creation and then shall repeat it. Whither away then are ye deviating? 34 Ask: "Is there one among those you associate with God who can show the way to the truth?" Say: "It is God who shows the way to truth." Then who is more worthy of being followed -- He who guides to the truth, or he who cannot find the path until shown the way? What has happened to you that you judge in such a wise? 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 This Quran is not such as could have been produced by anyone but God. It fulfills that [the predictions] which came before it and gives a fuller explanation of the [earlier] Revelations. There is no doubt about it: it is from the Lord of the Universe. 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 On the contrary, they denied the thing the knowledge of which they could not master, whereas they have not yet seen its outcome; similarly those before them had denied, therefore see what sort of fate befell the unjust! 39 And of them are some who will believe therein, and of them are some who will not believe therein; and thy Lord is the Best Knower of the corrupters. 40