Why? Profound question follows.?

You want sense and logic in religion? ?

I can still recall being shouted at in school when asking "if God created Adam and Eve and they had two sons, Cain then kills Abel and goes away and gets married, who did he marry and where did they come from?"
Still waiting to know

Well some religions do believe that God, the creator, had many children.
Your query is just one construct in the search for the divine.

Dee1012, I have asked that question on many occasions, I usually get hums and haws or outright 'you do not question God'.
One minister told me that Adam and Eve had more than 2 children, she was not amused when I pointed out that she was encouraging incest.
Still not had an explanation I am happy with !!!

The ideas of sacrifices and incarnations are in many religions.