Ge 9:1 So God blessed Noah and his sons, and said to them: "Be fruitful and multiply, and fill the earth.
2 "And the fear of you and the dread of you shall be on every beast of the earth, on every bird of the air, on all that move on the earth, and on all the fish of the sea. They are given into your hand.
3 "Every moving thing that lives shall be food for you. I have given you all things, even as the green herbs.
4 "But you shall not eat flesh with its life, that is, its blood.
5 "Surely for your lifeblood I will demand a reckoning; from the hand of every beast I will require it, and from the hand of man. From the hand of every man's brother I will require the life of man.
6 "Whoever sheds man's blood, By man his blood shall be shed; For in the image of God He made man.
7 And as for you, be fruitful and multiply; Bring forth abundantly in the earth And multiply in it."
Again, Moses is showing his Israelite readers the folly of worshiping fertility gods since it is God who blesses man with children.
He also shows the folly of worshiping animals and beast. They are given into his hand not to be worshiped but for food. The folly of worshiping deities of vegetation is also shown since God gave the herbs to man for food.
The sacredness of life is also taught. Blood, a representation of life, should never be eaten. It is not food.
Moses also shows the gravity of murder. It is a desecration of the image of God, man.