Once God got through cursing Adam and Eve, he seemed to have disproved of their attempt to make clothes for themselves, so he made them proper coverings made of animal skins to cover their now shameful nakedness before running them off from Eden:
Genesis 3:21:
“The Lord God made garments of skin for Adam and his wife and clothed them.”
Thus, God made Adam and Eve the first true concept of clothes; something to clover part of the body (especially the private parts) and indirectly introduced a new law that would (or should) now come naturally.
From now on Adam and Eve (and their descendants) would no longer be naked now that they had understanding that being naked was shameful so they would wear coverings called clothes made of animal skins/other fabrics that would properly cover their shameful nakedness and privates and make them feel comfortable. Not only did God introduce clothing but he might have introduced something else with these new clothes:
These clothes were not made from leaves like Adam and Eve originally made for their nakedness: But rather the clothes God gave them were made of somethings skin that was once alive! This meant God (logically) had to kill an innocent animal to make their skin clothing! If this was true; that God killed an animal, this would be the first recorded slaughter of an animal in the Bible (and history).
However, the answer is not directly stated in the passage thought it does seem like God was trying to cover their shame and showing it was by HIS actions that their shame was covered properly.
In this way, God might have first taught/foreshadowed animal sacrifices possibly as a atonement for their disobedience (sin).
Regardless of if this was the official beginning of sacrifices or not, sacrifices of animals were eventually taught to Adam and Eve and their descendants:
The first known descendants of Adam to offer sacrifices were Able and Cain; which were the children of Adam and Eve:
Genesis 4:2-4
“Now Abel kept flocks, and Cain worked the soil. In the course of time Cain brought some of the fruits of the soil as an offering to the Lord. And Abel also brought an offering—fat portions from some of the firstborn of his flock. The Lord looked with favor on Abel and his offering,...”
Since this God now commanded sacrifice and offerings to him the descendants of Adam were expected to sacrifice their animals/fruit to God to be right with him and possibly to atone for their sins.
Main laws:
Sacrifice your animals and fruit as sacrifices/offerings to God.
Make a decision with your knowledge of good and evil to either choose to do good or do what you want (evil).
Worship and do what God wants you to do.
Other laws
Wear clothes to cover your nakedness.
Tend to the earth you are given and rule over animals on Earth.
Other laws God might have commanded the Adamites that are not recorded.
Since Adam and Eve now had understanding of good and Evil like God, they (and each one of their individual descendants) had to now choose with their new understanding and freewill if they were going to obey God by doing good and following him or choose to do what they wanted instead by doing evil.
The first generations obeyed God and did good.
At first Adam’s descendants (called Adamites) seemed to have mainly choose to obey God and choose to do good like he wanted them to; beginning with Adam's and Eve's child Seth and their other children they had were especially choosing to follow God:
Genesis 4:26
“...At that time (the generation of Seth: the children of Adam and Eve) people began to call on the name of the Lord.”
And most likely their grandchildren and the first generations of Adamites (especially Sethites: that is descendants of Seth) began to mostly choose to obey God and do good.
However something foreign and strange seem to change all that in a few generations later
However, something strange and mysterious (and very bad) happened right after this:
As Adam and Eve’s children began to have children and their children had more children; more and more Adamites/humans were born and the population of Adamites/Humans began to exponentially grow on Earth.
Genesis 6:6
“...human beings began to increase in number on the earth and daughters were born to them,…”
During the beginning of this exponential growth, a mysterious group simply called ‘the sons of God’ begins to fall in love with the beauty of Adamite women (seeming to be called here ‘the daughters of men’ or specifically in the original Hebrew ‘the daughters of Adam’[1].)
Genesis 6:2
“...the sons of God saw that the daughters of humans (Adam) were beautiful…”
Then this mysterious and unknown group then begins to have romantic relationships with these Adamite women; eventually marrying them.
Genesis 6:2
“…and they married any of them they chose.”
The Adamite women intermarrying with the sons of God seemed to have angered God and made him upset with the Adamite Humans (possibly hinting that this was a law God had warned the Adamites about: to not intermarrying with strange groups of different humans/ even other beings; but only with other Adamites/humans) because he said he would not put up with this intermarrying of the Adamites and their mixed children by cursing their children to only live 120 years:
Genesis 6:3
“Then the Lord said, ‘My Spirit will not contend with humans forever, for they are mortal; their days will be a hundred and twenty years.’ ”
Why God was displeased with these intermarriages (and may have even openly warned these Adamite women of his displeasure and new curse on their children) they continued to remain in this marriage and eventually had mixed children anyway:
Genesis 6:4
“…when the sons of God went to the daughters of humans(Adam) and had children by them.”
But these mixed children turned out to be very different from their Adamite/human mothers: they seemed to have growed to be a massive size and very powerful than normal Adamites:
Once this first generation of mixed children grew up they became very powerful and respected men to the Adamites; that came to be known as Nephilim (Hebrew for ‘giant’)[2].
Genesis 6:4
“…[these] children…were…heroes…, men of renown…The Nephilim…on the earth in those days…”
However even though these Nephilim only lived to be 120 years old (only a small fraction of the average Adamic lifespan of about 800-900 years at the time).
These intermarriages only seemed to continue to get more popular from here (and maybe the famous and respected Nephilim children also married Adamite wives like their fathers had and had other mixed children as well) as the Nephilim (that is anyone that was a hybrid of varying portions of Adamite and Sons of God D.N.A.) population seems to have dramatically grown it was also very likely (if this was the case) all this intermixing was ‘breeding out’ what was left of the original pure-blooded Adamites.
If that wasn’t bad enough, all this mixing of D.N.A. was seem to have been causing the Nephilim and Adamites to both become corrupt and led them to a life of constant horrible violence and evil thoughts and actions:
They not only did what God did not like (and very likely forbid) to intermarry and have mixed children with strange groups but choose to do evil and even the worst types of evil imaginable (like violence and murder) and now it was so bad they were corrupting everything else on Earth!
Almost all of the descendants of Adam and Eve around 1,000 years later after they broke the Edenic covenant had once again broken God’s covenant (This Adamic covenant: that is to choose to obey God by obeying him and doing good) and choose to do evil with their understanding. At this point, God had given up on his human creations:
He regretted even making them they had become so evil he was horrified and very grieved by their choice to do evil and decided to destroy all land-living life on Earth in a massive destructive flood to kill all humans and land animals alike:
Genesis 6:5-7
“The Lord saw how great the wickedness of the human race had become on the earth, and that every inclination of the thoughts of the human heart was only evil all the time. The Lord regretted that he had made human beings on the earth, and his heart was deeply troubled. So the Lord said, ‘I will wipe from the face of the earth the human race I have created—and with them the animals, the birds and the creatures that move along the ground—for I regret that I have made them.’ ”
By the 9th Generation, every descendant of Adam had rejected God and his covenant one way or another, except for only one man and by his extension his family:
The name of this Adamite man was a Sethite named Noah, and God acknowledged he and his wife and their sons, and their son’s wives were the only Adamite/humans left on Earth that were not choosing evil and still obeying him:
Genesis 6:8
“But Noah found favor in the eyes of the Lord…”
he was also the last pure Adamite who choose to obey God, so he was only going to spare him and his family from the devastating flood:
Genesis 6:8
“Noah was a righteous man, blameless among the people of his time, and he walked faithfully with God.”
He was going to make a new covenant with Noah after he had killed the mixed Nephilim descendants of the formerly pure rebellious Adamites, who at this time most likely had almost bread all the pure Adamites out (if there were still any at this time besides Noah and his family), and (if any were left) kill the remaining pure Adamites who refused to obey God and do evil:
This would leave only Noah and his sons left alive as the only living pure descendants of Adam and Eve in existence.
So, God finally talked to Noah and warned him that he was going to kill all Adamites/Humans, Nephilim, and land-animals on Earth so he told him to build a giant boat called an Ark to save him, his wife, and his sons and their wives and a pair of all land and flying animals that God would bring to the ark to be saved from the flood that was going to destroy everything:
Genesis 6:13-21
“So God said to Noah, ‘I am going to put an end to all people, for the earth is filled with violence because of them. I am surely going to destroy both them and the earth. So make yourself an ark of cypress wood; make rooms in it…I am going to bring floodwaters on the earth to destroy all life… and you will enter the ark—you and your sons and your wife and your sons’ wives with you. You are to bring into the ark two of all living creatures, male and female, to keep them alive with you. Two of every kind of bird, of every kind of animal and of every kind of creature that moves along the ground will come to you to be kept alive. You are to take every kind of food that is to be eaten and store it away as food for you and for them.’”
And once he killed all rebellious Adamites and Nephilim he would make a new covenant with Noah and his family for his obedience:
Genesis 6:18
“...But I will establish my covenant with you,…”
So Noah obeyed God and built the ark exactly like he instructed him too:
Genesis 6:22
“Noah did everything just as God commanded him.”
After he got done with the ark, God led two or more mating pairs of every animal on Earth to be safe from the destructive flood in the ark:
Genesis 7:8-9
“Pairs of…animals, of birds and of all creatures that move along the ground, male and female, came to Noah and entered the ark, as God had commanded Noah.”
Once all the mating animal pairs were on the ark Noah and his family finally went on the ark right before God began the destructive flood:
Genesis 7:7
“And Noah and his sons and his wife and his sons’ wives entered the ark to escape the waters of the flood.”
When the flood began God shut the door of the ark:
Genesis 7:16
“...Then the Lord shut him in.”
Then he flooded the world in a massive destructive flood that killed all the mixed Nephilim children of the rebellious Adamites who married the mysterious sons of God/Nephilim as well as the remaining rebellious pure Adamites and all the land animals on Earth:
Genesis 7:10-23
“…the floodwaters came on the earth….And rain fell on the earth forty days and forty nights….Every living thing that moved on land perished—birds, livestock, wild animals, all the creatures that swarm over the earth, and all mankind….Only Noah was left, and those with him in the ark.”
After 40 days all the rebellious humans (and land animals) were completely destroyed so God drained the floodwater away for several months and led the ark to the top of a mountain in Anatolia called Mt. Ararat to let the surviving animals and Adamites out about a year later when the flood first began: God then called Noah and told him they could exit the ark because the flood was officially over:
Genesis 8:15-19
“Then God said to Noah, ‘Come out of the ark, you and your wife and your sons and their wives. Bring out every kind of living creature that is with you—the birds, the animals, and all the creatures that move along the ground…’“
So, Noah and his family and all the animals got off the ark on top of the mountain:
Genesis 8:18
“So Noah came out, together with his sons and his wife and his sons’ wives. All the animals and all the creatures that move along the ground and all the birds—everything that moves on land—came out of the ark, one kind after another.”
After they all got out of the ark Noah and his family found themselves on the top of a mountain where they view a new world with a fresh start and the beginning of a new covenant.
(Back to the laws before the Old Covenant)
Sources:
[1]
[A] The phrase ‘The Daughters of Men’ was originally “בְּנ֣וֹת הָֽאָדָ֔ם” (Beah’Note-Hah’Auh-daum) literally meaning ‘the Daughters of Adam’ and ‘Adam’ most likely referring to the original human named ‘Adam’, therefore this phrase would be referring to female descendants of Adam.
[B] Genesis 2:6 Hebrew interlinear from Biblehub
Website:
https://biblehub.com/text/genesis/6-2.htm
[C] Strong’s Hebrew 120. adam “אָדָם”(aw-dawm')--man, mankind(Human/Humanity) by Biblehub
Website:
https://biblehub.com/hebrew/120.htm
[2]
Strong’s Hebrew concordance--5303. נְפִיל (nef-eel')--'"giants", name of two peoples, one before the flood and one after the flood' by Biblehub
Website: