We can only believe in prophets if we ourselves become prophets

"In Vedanta the chief advantage is that it was not the work of one single man; and therefore, naturally, unlike Buddhism, or Christianity, or Mohammedanism, the prophet or teacher did not entirely swallow up or overshadow the principles. The principles live, and the prophets, as it were, form a secondary group, unknown to Vedanta. The Upanishads speak of no particular prophet, but they speak of various prophets and prophetesses. The old Hebrews had something of that idea; yet we find Moses occupying most of the space of the Hebrew literature. Of course I do not mean that it is bad that these prophets should take religious hold of a nation; but it certainly is very injurious if the whole field of principles is lost sight of. We can very much agree as to principles, but not very much as to persons. The persons appeal to our emotions; and the principles, to something higher, to our calm judgement. Principles must conquer in the long run, for that is the manhood of man. Emotions many times drag us down to the level of animals. Emotions have more connection with the senses than with the faculty of reason; and, therefore, when principles are entirely lost sight of and emotions prevail, religions degenerate into fanaticism and sectarianism. They are no better than party politics and such things. The most horribly ignorant notions will be taken up, and for these ideas thousands will be ready to cut the throats of their brethren. This is the reason that, though these great personalities and prophets are tremendous motive powers for good, at the same time their lives are altogether dangerous when they lead to the disregard of the principles they represent. That has always led to fanaticism, and has deluged the world in blood.

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Now, if these prophets, as they say, were peculiar persons who alone had the right to catch a glimpse of that which is beyond and no one else has the right, we should not believe in these
prophets, because they are peculiar cases without any reference to a principle. We can only believe in them if we ourselves become prophets."

Swami Vivekananda,
The Complete Works of Swami Vivekananda, Vol 6,
THE METHODS AND PURPOSE OF RELIGION