Best way to understand is from original language and meanings. This is one of the best videos I have found explaining the garden of pleasure myth

There are TWO creation myths in Genesis
Chapter one has humans created, male and female, be fruitful and multiply
Chapter two is the Garden tale, where God made his CHOSEN people (Adam and Eve)

Wives came from the land of Nod (where the humans from chapter one dwelt)

Not saying it makes sense, just touching on the general idea, which varies a little sect to sect, and this same thing is used by white supremacists to justify racism via Christianity.

Stupidity knows no bounds. No matter how low my expectations are, these people exceed it.

Or who everybody (!) )procreated with....

The buy-babble say Cain knew his wife, and since he lived in the land of Nod, ( Yes really. ) she presumably came from Nod and so was a Noddy. One thing of course about the Adam And Eve story, is that in its original form the couple were not perhaps the first people on Earth, but only the first of the line which led to the Jews, they only later get mixed up with the origin story.

It is my opinion that the biblical creation story is simply the mythical story of how the Hebrew people came to be and has nothing to do with the rest of the planet. All tribes and cultures have their own creation stories and this is no exception.

Incest was common and accepted in the beginning.