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.' [ Gen 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. …

On Paradise, 15.76-77 ↗