Genesis .
God created earth . seperated sea from sky . made night and day . made adam and then eve . later on they gave birth to 2 boys Cain and Abel . There were now 4 human on earth (Adam, Eve, Cain and Abel)
One day Cain killed Abel . and god were about to send him into exile to the land of Nod . The story goes like this :
"What have you done . your brother's blood cries out to me from the ground . you are now cursed and will be a homeless wanderer!"
"My punishment is too great for me to bear . you have made me a homeless wanderer . anyone who finds me will kill me!" WHO is the people cain is afraid of? According to bible only 4 human on earth - minus one Abel is murdered
"No for I will give a sevenfold punishment to anyone who lay hands on you"
so Cain left and live in Land of Nod . Cain met a girl and had sexual relations and she became pregnant and gave birth to Enoch. (WHO is this girl ? where she came from? are we to conclude by that time there were not only Adam's family living on earth? that there were other human as well?)