Thematic Bible: First performed on abraham and his family

And Abraham was ninety years old and nine, 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. In the same day was Abraham circumcised, and Ishmael his son. read more.
And all the men of his house, born in the house, and bought with money from a foreigner, were circumcised with him.