Cosmas Indicopleustes

Lo! I have given you all things as the green herb to eat, but flesh in the blood thereof shall ye not eat; meaning this: Lately I interdicted you from eating many things, but now I permit you to eat of all things, and to eat even flesh. Sacrifice, therefore, and pour out the blood, and then eat the flesh as ye eat vegetables; and eat also of the olive, of which before the Flood it was not permitted to eat, because it also was the fruit of a tree