Book 1 · Section 9

(9) Why does Moses say that every tree in the Paradise was beautiful to look upon and good to eat? (#Ge 2:9). He says this because the virtue of trees is of a twofold nature, consisting in bearing leaves and fruit, one of which qualities is referred to the pleasing of the sight, the other to the gratification of the taste; but the word beautiful was not employed inappropriately. Indeed it is very proper that the plants should be always green and flourishing perpetually, as belonging to a divine Paradise, which as such must be everlasting; and it is fit too that they should never degenerate so as to lose their leaves. But of the fruit he says, not that it was beautiful, but that it was good, speaking in a very philosophical spirit; since men take food, not only because of the pleasure which it affords, but also because of its use; and use is the flowing forth and imparting of some good.