Natural knowledge of God’s law
We were studying Abraham and the Isaac sacrifice. One of the participants stated that "Humans from creation to present were aware of the 10 commandments." My reading is that the 10 Commandments were handed down in Exodus 20. Prior to that God had given no specific behavior instructions to man from the inception of creation, through Adam and Eve's sin, other than "to not eat of the Tree of Knowledge" and a follow-on in which Cain killed Abel, wherein murder is recognized. I may answer my own question here - but the tree of knowledge has never been portrayed to me as 'knowledge of the specifics of the 10 commandments. I would like some clarification as to when man actually knew all the wrongs God had ordained.
The Bible teaches that people have a natural knowledge of God’s law (Romans 2:14-15). People naturally know that it is wrong to steal, kill, lie, etc. Apart from the Bible, people will not know these prohibitions and commands as the “Ten Commandments,” but they will be familiar with the content of the Ten Commandments.
God initially “wrote” his law into the hearts of people, but as that knowledge became blurred over time, he spelled it out in the commandments he delivered through Moses (Exodus 20; Deuteronomy 5). The Ten Commandments remain a good summary of God’s moral law: his will for all people of all time.