Bede : Except that you shall not eat flesh with its blood. For blood rightly denotes carnal desires and carnal sense. Blood is poured out when one renounces carnal temptations and thoughts, in which one lived poorly, so that such people can say with the Apostle: Yet I live, now not I; but Christ lives in me (Gal. II, 29). And again: I conferred not immediately with flesh and blood (Gal. I, 16): otherwise, whoever begins to incorporate those persevering in former crimes into the unity of the holy Church by baptizing them, as if eating beasts given by the Lord with blood, because he receives into society those whose conscience is still held by their old way of life as if suffocated. They say that this was the greatest transgression of the giants because they ate flesh with blood; and therefore the Lord, having destroyed them by the flood, indeed allowed people to eat flesh, but prohibited them from doing so with blood. — Commentary on Genesis (Hexaemeron) Ephrem the Syrian : God also blessed Noah and his sons that they might be fruitful and multiply and that fear of them should fall upon all flesh both in the sea and on dry land. "Only you shall not eat flesh with its life." That means you shall eat no flesh that has not been slaughtered and whose blood, which is its life, has not been drained. — COMMENTARY ON Genesis 6.14.1 John Chrysostom : From this the eating of meat takes its beginning, not for the purpose of prompting them to gluttony. But since some of the people were about to offer sacrifices and make thanksgiving to the Lord, he grants them authority over food and obviates any anxiety about foods lest they seem to be abstaining from foods because they were not properly consecrated. "I have given you them all," he says, "as I did the green grass." Then, as in the case of Adam when he instructed him to abstain from the one tree while enjoying the others, so in this case too. After permitting the consumption of all foods without hesitation, he says, "except you are not to eat flesh with its lifeblood in it." So what does this statement mean? It means "strangled," for an animal's blood is its soul. So since they were about to offer sacrifices in the form of animals, he is teaching them in these words that as long as the blood has been set aside for me, the flesh is for you. In doing so, however, he is intent upon resisting in advance any impulse toward homicide. — HOMILIES ON Genesis 27.13 Augustine of Hippo : WHAT DOES IT MEAN: AND I WILL REQUIRE THE LIFE OF MAN AT THE HAND OF HIS BROTHER? — Will he refer to every man, the brother of every man according to kinship, by whom we all come from one? [ — QUESTIONS ON GENESIS, Q. 15 (tr. J. Litteral, draft)