If man had not sinned, the earth would have brought forth thorns and thistles to be the food of animals, but not to punish man, because their growth would bring no labor or punishment for the tiller of the soil, as Augustine says (Gen. ad lit. iii, 18). Alcuin [*Interrog. et Resp. in Gen. lxxix], however, holds that, before sin, the earth brought forth no thorns and thistles, whatever: but the former opinion is the better.
Reply Obj. 2: The multiplying of her conceptions was appointed as a punishment to the woman, not on account of the begetting of children, for this would have been the same even before sin, but on account of the numerous sufferings to which the woman is subject, through carrying her offspring after conception. Hence it is expressly stated: "I will multiply thy sorrows, and thy conceptions."
Reply Obj. 3: These punishments affect all somewhat. For any woman who conceives must needs suffer sorrows and bring forth her child with pain: except the Blessed Virgin, who "conceived without corruption, and bore without pain" [*St. Bernard, Serm. in Dom. inf. oct. Assum. B. V. M.], because her conceiving was not according to the law of nature, transmitted from our first parents. And if a woman neither conceives nor bears, she suffers from the defect of barrenness, which outweighs the aforesaid punishments. Likewise whoever tills the soil must needs eat his bread in the sweat of his brow: while those who do not themselves work on the land, are busied with other labors, for "man is born to labor" (Job 5:7): and thus they eat the bread for which others have labored in the sweat of their brow.
Reply Obj. 4: Although the place of the earthly paradise avails not man for his use, it avails him for a lesson; because he knows himself deprived of that place on account of sin, and because by the things that have a bodily existence in that paradise, he is instructed in things pertaining to the heavenly paradise, the way to which is prepared for man by Christ.
Reply Obj. 5: Apart from the mysteries of the spiritual interpretation, this place would seem to be inaccessible, chiefly on account of the extreme heat in the middle zone by reason of the nighness of the sun. This is denoted by the "flaming sword," which is described as "turning every way," as being appropriate to the circular movement that causes this heat. And since the movements of corporal creatures are set in order through the ministry of the angels, according to Augustine (De Trin. iii, 4), it was fitting that, besides the sword turning every way, there should be cherubim "to keep the way of the tree of life." Hence Augustine says (Gen. ad lit. xi, 40): "It is to be believed that even in the visible paradise this was done by heavenly powers indeed, so that there was a fiery guard set there by the ministry of angels."
Reply Obj. 6: After sin, if man had [eaten] of the tree of life, he would not thereby have recovered immortality, but by means of that beneficial food he might have prolonged his life. Hence in the words "And live for ever," "for ever" signifies "for a long time." For it was not expedient for man to remain longer in the unhappiness of this life.
Reply Obj. 7: According to Augustine (Gen. ad lit. xi, 39), "these words of God are not so much a mockery of our first parents as a deterrent to others, for whose benefit these things are written, lest they be proud likewise, because Adam not only failed to become that which he coveted to be, but did not keep that to which he was made."
Reply Obj. 8: Clothing is necessary to man in his present state of unhappiness for two reasons. First, to supply a deficiency in respect of external harm caused by, for instance, extreme heat or cold. Secondly, to hide his ignominy and to cover the shame of those members wherein the rebellion of the flesh against the spirit is most manifest. Now these two motives do not apply to the primitive state. because then man's body could not be hurt by any outward thing, as stated in the First Part (Q. 97, A. 2), nor was there in man's body anything shameful that would bring confusion on him. Hence it is written (Gen. 2:23): "And they were both naked, to wit Adam and his wife, and were not ashamed." The same cannot be said of food, which is necessary to entertain the natural heat, and to sustain the body.
Reply Obj. 9: As Augustine says (Gen. ad lit. xi, 31), "We must not imagine that our first parents were created with their eyes closed, especially since it is stated that the woman saw that the tree was fair, and good to eat. Accordingly the eyes of both were opened so that they saw and thought on things which had not occurred to their minds before, this was a mutual concupiscence such as they had not hitherto." _______________________