Gênesis 9
Ambrose of Milan · Comentário Patrístico (catena)
Gênesis 9:5-6
Indeed, I will require your blood, and the blood of your souls from all beasts, and from the hand of man (Gen. IX, 5). He compared it to bestial malice, or rather even accumulated the wickedness of man beyond the ferocity of beasts, by saying: From the hand of the brother of man. Indeed, beasts have nothing in common with us in nature, and they are not bound by any brotherly right. If they harm humans, they harm them as strangers. They do not violate the laws of nature; they do not forget the bond of kinship. Therefore, a person sins more gravely if they plot against their brother. And the Lord promised that He would seek the blood of a man from the hand of his brother, saying: 'I will require the blood of a man from the hand of his brother.' Is not a brother someone whom a rational nature has brought forth from a certain womb, and the same mother's generation has joined us together? For the same nature is the mother of all humans, and therefore we are all brothers, generated from the same mother, and bound by the same right of kinship. — On Noah and the Ark, 26.94
Gênesis 9:25-27
First of all, let us show great reverence to our parents, as we read in Genesis 9:25-27, that whoever was blessed by their father, was blessed, and whoever was cursed by their father, was cursed! Therefore, God has granted this grace to parents, so that the piety of their children may be provoked. Therefore, it is the duty of children to obey their parents. Honor your father, so that he may bless you. — On the Blessings of the Patriarchs, 1.1