I always wondered who the sons and daughters of Adam married, according to the Torah, incest was prohibited by God, and it never made sense to me that he would create man to "Multiply and Fill the whole earth" yet forces them to do so in a way he later condemns.
So to find out answers and a resolution to this problem I interview Ali Siadatan who offers another perspective.
In mainstream Christianity, this topic has always seemed to be totally "OFF LIMITS" but i don't see anything necessarily heretical about discussing it, and hearing out other explanations from scripture can be a good intellectual exercise.
Adam was the first man. Go to Genesis 2 in your Bible. Some people think that Adam wasn't the first man because they don't know who Cain and Abel married. Cain and Abel married their sisters. At that time it wasn't forbidden to marry your sister because they had no other options.