After Seth was born, then it records other sons and daughters, why not before ? If we put daughters before Seth, then we change the story, by assuming there were daughters before Seth, therefore one can only assume, there is no evidents to back that Cain married a sister.
Why all the tortured explanations?
Why you got such a problem with this?
Adam and Eve not only had children before Seth,
but before Cain and Abel, and they were
all daughters.
See Genesis 1:28 and 4:1.
After the curse, Eve was "able" to conceive sons.
The sons had no choice but to marry their sisters
since they were the only mates available for them.
There were no genetic mutations then, so birth defects weren't an issue.
Also, there would no laws against it until the days of Moses over 2,000 years later.
This stuff's not that hard to figure out.
To assume Cain married his sister, is interesting at best and can be fun at times but to believe it to be true is foolish, as it lacks evidenced, it reminds me of the Serpent story, the Serpent was a talking snake, is foolish but interesting because it lacks evidenced.
Here you go again.
The serpent was not a snake, it was a dragon.
You gotta read the whole Bible, man.