There are people who might perhaps ask if sending of the prophets by God is necessary to guide the people. Is our intellect not sufficient to understand the realities? Is the progress and development of science not sufficient to discover all of the secrets and illuminate all of the truths?
And then whatever the prophets might tell us, is one of two things which either our intellect understands well or it does not.
In the first case, we do not need the prophets and as to the second, we cannot accept something which goes against our intellect and wisdom.
On the other hand, is it correct for the human being to be placed completely in the hands of others and accept whatever they say without questioning? Are the prophets not human beings just like we are? How can we agree to place ourselves at the disposal of what another human being says?