Therefore, as by one man sin entered into the world, and death by sin; and so death passed upon all men, for that all have sinned:
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Augustine of Hippo
AD 430
If the souls of all men are derived from that one which was breathed into the first man … either the soul of Christ was not derived from that one, since he had no sin of any kind … or, if his soul was derived from that first one, he purified it in taking it for himself, so that he might be born of the virgin and might come to us without any trace of sin, either committed or transmitted.