I can obey a command that tells me to move my hand up or down...

I can obey a command that tells me to move my hand up or down, to walk or sit, even if such a command does not seem to be wise. But I am not able to obey a command, for example, that tells me to believe that two and two are five, or that three are one, or that fire is cold, or that snow is hot. Our human knowledge comes from direct or indirect evidence, and it does not follow our own whim and will. An acceptable religious belief must be based on knowledge.

When God wants me to know something, He should make such a knowledge possible by making its evidence available. Should He demand from me to believe something while evidence is standing against it, He would be asking me to do the impossible. This contradicts His justice.

Islam never condemns an individual when he does not believe in a principle because of lack of evidence; on the contrary, Islam blames a person when he follows a principle while groping in the dark without illuminating evidence, or when such a principle is not in accordance with the truth. Following a principle against evidence, or with lack of evidence, is like a judgement of a court against a defendant without any evidence. Such an attitude is not to be praised.

From the Holy Qur'an: “And follow not that of which thou hast no knowledge. Surely the hearing and sight and the heart, all of these will be asked about it.” 17:36 Never accept popularity at face value. A religious researcher should not take the popularity of a religious doctrine in his society as an evidence of its truth. Many popular ideas have been proved wrong. At one time, it was believed that the earth is flat and that the sun revolves around the earth.

People believed this for thousands of years, but now we know that neither of these ideas is true. Furthermore, what is popular in one society may be unpopular in another. The opposite is also true. If popularity is a sign of soundness, all those popular ideas which contradict each other would be true, but truth never contradicts itself.

When the first prophet came to proclaim the concept of one God, his message was not popular in any society because the people of the world were either pagans or non-believers. The unpopularity of such a Divine message did not prevent that message from being true. As a matter of fact, all the prophets came to their societies with unpopular messages. Their aim was to correct the popular wrong and replace it with the unpopular truth.