The longer mankind lived, the clearer and clearer became the meaning of Christianity, as must always be the case with every theory of life.
Succeeding generations corrected the errors of their predecessors, and grew ever nearer and nearer to a comprehension of the true meaning. It was thus from the very earliest times of Christianity. And so, too, from the earliest times of Christianity there were men who began to assert on their own authority that the meaning they attribute to the doctrine is the only true one, and as proof bring forward supernatural occurrences in support of the correctness of their interpretation.
This was the principal cause at first of the misunderstanding of the doctrine, and afterward of the complete distortion of it.
It was supposed that Christ's teaching was transmitted to men not like every other truth, but in a special miraculous way. Thus the truth of the teaching was not proved by its correspondence with the needs of the mind and the whole nature of man, but by the miraculous manner of its transmission, which was advanced as an irrefutable proof of the truth of the interpretation put on it. This hypothesis originated from misunderstanding of the teaching, and its result was to make it impossible to understand it rightly.
And this happened first in the earliest times, when the doctrine was still not so fully understood and often interpreted wrongly, as we see by the Gospels and the Acts. The less the doctrine was understood, the more obscure it appeared and the more necessary were external proofs of its truth. The proposition that we ought not to do unto others as we would not they should do unto us, did not need to be proved by miracles and needed no exercise of faith, because this proposition is in itself convincing and in harmony with man's mind and nature; but the proposition that Christ was God had to be proved by miracles completely beyond our comprehension.
The more the understanding of Christ's teaching was obscured, the more the miraculous was introduced into it; and the more the miraculous was introduced into it, the more the doctrine was strained from its meaning and the more obscure it became; and the more it was strained from its meaning and the more obscure it became, the more strongly its infallibility had to be asserted, and the less comprehensible the doctrine became.