Paul Bethke
Philosopher
The torah, the "commands of the Creator", had NOT been given yet at the time of the "flood".
So how could any people back in those days know what sin even was? If the torah was given to "show people what sin is", then the people at the time of the "flood" had not been "shown", but they did not "escape the wrath of Yahweh".
That is disgusting and beyond cruel.
Strange that you do not understand the Scriptures---before the flood there were two commands that regulated the behaviour of those people and these two commands would have kept the population in check.
One as you should know was to keep the Sabbath, and the other as you should know, was for a man to take a wife and remain with her as stated.
Now in those days, these two commands were abandoned and people reverted to animalism.
After the flood Yahweh added more commands for Noah and his family to adhere to as a family and later to pass on these laws to their offspring—the additional laws that were added to the original two were they could eat meat, but not meat with blood in it and they were to put to death anyone who murdered another.
So what they were left with.
The Sabbath.
The marriage covenant.
Eat meat, but not the blood.
The death penalty for murder.
These laws were to govern the population until the Torah was given.
So as the Apostle Paul explains—where there is no law there is no sin.
So, the Torah explains what is sin.
So, now through the Gospel all people will come under the Judgement of the commands of the Creator as described in the Torah.
Matt 28:19 Therefore go and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit,
Matt 28:20 and teaching them to obey everything I have commanded you. And surely I am with you always, to the very end of the age."
So Jesus stipulated that the Torah would never cease to exist, but will be used to convict people of sin so that they can repent.
So marriage remains the cardinal requirement of the Creator, and divorce and remarriage to another person is adultery.