'Foreskin' in the Bible

And you shall be circumcised in the flesh of your foreskin, and it shall be the sign of the covenant between Me and you.

But an uncircumcised male who is not circumcised in the flesh of his foreskin, that person shall be cut off from his people; he has broken My covenant.”

Then Abraham took Ishmael his son, and all the servants who were born in his house and all who were bought with his money, every male among the men of Abraham’s household, and circumcised the flesh of their foreskin in the very same day, as God had said to him.

Now Abraham was ninety-nine years old when he was circumcised in the flesh of his foreskin.

And Ishmael his son was thirteen years old when he was circumcised in the flesh of his foreskin.

Then Zipporah took a flint and cut off her son’s foreskin and threw it at Moses’ feet, and she said, “You are indeed a bridegroom of blood to me.”

On the eighth day the flesh of his foreskin shall be circumcised.