Albert, with this comment you bring to light something that in my opinion is key for our debate.
Genesis 9:3-6 establishes a sharp distinction between the dignity of humans and that of animals, and proclaims the prohibition of murder because “God made humans in the image of God”.
This is supposed to be a universal commandment for the whole humankind and each single human being (as the sign of the Rainbow symbolizes) independently of someone knows or not the Old and New Testament.
Therefore, Genesis is telling us that each time God creates a new human person God engraves this commandment in her heart, exactly the same way as he did with Noah and his family. In other words, Genesis is revealing us, that there is a universal revelation of the principle enounced in Genesis 9:3-6, which happens everywhere and every time someone comes to existence, no matter whether or not the community within she/he is born reads the Bible.
Genesis 9:3-6 expresses an archetype of moral knowledge and law engraved in the collective unconscious of humanity, which is shared among all human persons.
Notice that Adam and Eve themselves are supposed to have acknowledged accountability to God “without help from the Old or New Testament”!
Good question!
I dare to ask on my turn:
When precisely did God establish the principle of Genesis 9:3-6 (the foundation of moral and law) and engraved it in human hearts for the first time in the evolutionary history?
Since we are assuming this principle holds for “aboriginal Americans” (~5,000 yrs. old) we are led to the following answer:
At a time when the difference between humans and great apes was as sharp as it was between “aboriginal Americans” and great apes.
If we rely on the expertise of recognized paleoarcheologists and computational geneticists, this time seems to be: about 15,000 yrs ago.
Our Cro Magnon ancestors who existed at this time, were endowed with sense of accountability to God, the same way as we are, and Adam and Eve were.
Cro Magnon ancestors before this time were as less endowed with such sense of accountability as their contemporaries Neanderthals were, or great apes today are.
I would be thankful for References advocating this view. I will be pleased to read them and discuss the issue more accurately.