Know that the difficulties which lead to confusion in the question what is the purpose of the Universe or of any of its parts, arise from two causes:… - Moshe ben Maimon

I rely on two precedents: first, to similar cases our Sages applied the verse, "It is time to do something in honour of the Lord: for they have made void thy law"... Secondly, they have said, "Let all thy acts be guided by pure intentions." ...Lastly, when I have a difficult subject before me—when I find the road narrow, and can see no other way of teaching a well established truth except by pleasing one intelligent man and displeasing ten thousand fools—I prefer to address myself to the one man, and to take no notice whatever of the condemnation of the multitude; I prefer to extricate that intelligent man from his embarrassment and show him the cause of his perplexity, so that he may attain perfection and be at peace.

Aristotle was guided by that which appears to be the nature of things. The Ashariyah refused to ascribe to God ignorance about anything... they preferred to admit the above-mentioned absurdities. The Mu'tazilites refused to assume that God does what is wrong and unjust; on the other hand, they would not contradict common sense and say that it was not wrong to inflict pain on the guiltless, or that the mission of the Prophets and the giving of the Law had no intelligible reason. They likewise preferred to admit the above-named absurdities. But they even contradicted themselves, because they believe on the one hand that God knows everything, and on the other that man has free will. By a little consideration we discover the contradiction.

What prevented Him from making His primary object a direct commandment to us, and to give us the capacity of obeying it? ...As it is the chief object and purpose of God that we should believe in the Law, and act according to that which is written therein, why has He not given us the capacity of continually believing in it, and following its guidance, instead of holding out to us reward for obedience, and punishment for disobedience, or of actually giving all the predicted reward and punishment? For [the promises and the threats] are but the means of leading to this chief object. What prevented Him from giving us, as part of our nature, the will to do that which He desires us to do, and to abandon the kind of worship which He rejects? There is one general answer to these three questions, and all questions of the character; it is this: Although in every one of the signs [related in Scripture] the natural property of some individual being is changed, the nature of man is never changed by God by way of miracle. ...it is in His power, according to the principles taught in Scripture, but it has never been His will to do it, and it never will be. If it were part of His will to change [at His desire] the nature of any person, the mission of prophets and the giving of the Law would have been altogether superfluous.