O death, where is thy sting? O grave, where is thy victory?
When was law first given?
12 Therefore, just as through one man sin entered the world, and death through sin, and thus death spread to all men, because all sinned— 13 (For until the law sin was in the world, but sin is not imputed when there is no law. 14 Nevertheless death reigned from Adam to Moses, even over those who had not sinned according to the likeness of the transgression of Adam, who is a type of Him who was to come. Rom. 5:12-14
"For until the law sin was in the world." Sin existed before the law. Men sinned before the law was given.
"Sin is not imputed when there is no law." No one was held guilty of sin, before the law was given.
"Death reigned from Adam to Moses (and beyond aorist tense)."
Isn't death an imputation of sin?
Therefore Adam had the law. (Had law, the article is not in the Greek.)
And therefore, sin existed in the world before Adam was given law.
What law was Adam given? A recent correspondent suggested, "Don't eat of the Tree of Knowledge of Good and Evil."
Good, but was that all?
In Exodus 18, Moses judged the people and taught law. Where did Moses get that law? The Ten Commandments were given in Exodus 20. The rest of the law follows. What law was Moses judging with and teaching before he received the law?
In Genesis 38, Judah understood and knew he was bound to Levirate marriage laws. These were not given until Deuteronomy 25. How did Judah know them? Why was he bound by them?
Noah knew which animals were clean and unclean. Who told him?
Cain and Abel knew how to conduct a proper sacrifice. How? Cain knew murder was wrong? Why?
Law predates Sinai. Law was given before Sinai. Adam was the first to transgress the law.
Adam transgressed/violated the law in Genesis 3. Death reigned from Genesis 3 on. Sin was imputed from Genesis 3 on.
Adam was given law before Genesis 3, that is, in Genesis 1 and/or 2.
Sin existed in the world before law was given. This is evident from comparing Genesis 1:2 with Jeremiah 4:22-23
22 For My people are foolish,
They have not known Me.
They are silly children,
And they have no understanding.
They are wise to do evil,
But to do good they have no knowledge.
23 I beheld the earth, and indeed it was
without form, and void;
And the heavens, they had no light.
In Jeremiah 4:22-23 and Genesis 1:2, we see sin with no knowledge. In Gen. 1:3, we finally see the light.