from "Pauline Christianity" --
"At all events, for a couple of centuries either side of Paul, there was a concentration of Jewish thought on Adam in some circles, which focused on his perfections before the Fall and the restoration of those perfections in the age to come. He was not merely the first man, but Man, a representative figure...Paul appears to differ from this tradition in two important ways. First, unlike it on the whole, he emphasizes the sin and not the original perfection of Adam. Secondly, again unlike it so far as we know, he conceives of humanity as being in Adam" (p. 56).