Ambrose of Milan : There, too, is that distinction between the serpent who is said to eat the earth and Adam, to whom God said: ' You shall eat in sadness the herbs of the field.' [ Genesis 3:18 ] We may note here a certain gradation. When we eat the earth, it seems that we are in a sort of warfare. when we eat the herbs, there is a certain advance. when finally, we eat bread, then our life of trial has reached it terminus. Let us experience a series of advancements in this life as Paul did: ' It is now no longer I that live,' that is, not I who before this ate the earth, not I who ate grass, for 'all flesh is grass,' but 'Christ lives in me.' [ Galatians 2:20 ] This signifies that living bread which comes from heaven, [ John 6:50 ] and that wisdom, too is living, together with grace, justice, and resurrection. Again, consider the fact that it is the serpent and not man who is cursed. And the earth is not curses in itself but is 'cursed in your work.' This is said in refernece to the soul. The earth is cursed if your works are earthly, that is of this world. It is not cursed as a whole. It will merely bring forth thorns and thistles, if it is not diligently cared. — On Paradise, 15.76-77