In neither or the four genuine epistles of Paul is Jesus described as superhuman, or as differing in nature from other men, save in his freedom from sin. As Baur has shown, "the proper nature of the Pauline Christ is human. He is a man, but a spiritual man, one in whom spirit or pneuma was the essential principle, so that he was spirit as well as man. The principle of an ideal humanity existed before Christ in the bright form of a typical man, but was manifested to mankind in the person of Christ." Such, according to Baur, is Paul's interpretation of the Messianic idea. Paul knows nothing of the miracles, of the supernatural conception, of the incarnation, or of the Logos. The Christ whom he preaches is the man Jesus, the founder of a new and spiritual order of humanity, as Adam was the father of humanity after the flesh. The resurrection is uniformly described by him as a manifestation of the power of Jehovah, not of Jesus himself. The later conception of Christ bursting the barred gates of Sheol, and arising by his own might to heaven, finds no warrant in the expressions of Paul. Indeed, it was essential to Paul's theory of the Messiah as a new Adam, that he should be human and not divine; for the escape of a divine being from Sheol could afford no precedent and furnish no assurance of the future escape of human beings. It was expressly because the man Jesus had been rescued from the grave because of his spirituality, that other men might hope, by becoming spiritual like him, to be rescued also. Accordingly Paul is careful to state that "since through man came death, through man came also the resurrection of the dead" (1 Cor. xv. 21); a passage which would look like an express denial of Christ's superhuman character, were it probable that any of Paul's contemporaries had ever conceived of Jesus as other than essentially human.