We shall now show what, in the text, is opposed to the three Pelagian positions:
(1) The sin of Adam has injured the human race at least in the sense that it has introduced death — "Wherefore as by one man sin entered into this world and by sin death; and so death passed upon all men". Here there is question of physical death. First, the literal meaning of the word ought to be presumed unless there be some reason to the contrary. Second, there is an allusion in this verse to a passage in the Book of Wisdom in which, as may be seen from the context, there is question of physical death. Wisdom 2:24: "But by the envy of the devil death came into the world". Cf. Genesis 2:17; 3:3, 19; and another parallel passage in St. Paul himself, 1 Corinthians 15:21: "For by a man came death and by a man the resurrection of the dead". Here there can be question only of physical death, since it is opposed to corporal resurrection, which is the subject of the whole chapter.
(2) Adam by his fault transmitted to us not only death but also sin, "for as by the disobedience of one man many [i.e., all men] were made sinners" (Romans 5:19). How then could the Pelagians, and at a later period Zwingli, say that St. Paul speaks only of the transmission of physical death? If according to them we must read death where the Apostle wrote sin, we should also read that the disobedience of Adam has made us mortal where the Apostle writes that it has made us sinners. But the word sinner has never meant mortal, nor has sin ever meant death. Also in verse 12, which corresponds to verse 19, we see that by one man two things have been brought on all men, sin and death, the one being the consequence of the other and therefore not identical with it.
(3) Since Adam transmits death to his children by way of generation when he begets them mortal, it is by generation also that he transmits to them sin, for the Apostle presents these two effects as produced at the same time and by the same causality. The explanation of the Pelagians differs from that of St. Paul. According to them the child who receives mortality at his birth receives sin from Adam only at a later period when he knows the sin of the first man and is inclined to imitate it. The causality of Adam as regards mortality would, therefore, be completely different from his causality as regards sin. Moreover, this supposed influence of the bad example of Adam is almost chimerical; even the faithful when they sin do not sin on account of Adam's bad example, a fortiori infidels who are completely ignorant of the history of the first man. And yet all men are, by the influence of Adam, sinners and condemned (Romans 5:18, 19). The influence of Adam cannot, therefore, be the influence of his bad example which we imitate (Augustine, "Contra julian.", VI, xxiv, 75).