Thematic Bible: Circumcision of

This [is] my covenant which you shall keep, between me and you, and [also] with your offspring after you: Every male among you shall be circumcised. And you shall circumcise the flesh of your foreskin, and it shall be a sign of the covenant between me and you. And {at eight days of age} you shall yourselves circumcise every male [belonging] to your generations [and] {the servant born in your house and the one bought from any foreigner} who is not from your offspring. read more.
{You must certainly circumcise} {the servant born in your house and the one bought from any foreigner}. And my covenant shall be with your flesh as an everlasting covenant. And [as for any] uncircumcised male who has not circumcised the flesh of his foreskin, that person shall be cut off from his people. He has broken my covenant.

And Abraham took Ishmael his son and all who were born of his house, and all [those] acquired by his money, every male among the men of Abraham's house, and he circumcised the flesh of their foreskin on the same day that God spoke with him. Abraham [was] ninety-nine years old when he circumcised the flesh of his foreskin. And Ishmael his son [was] thirteen years old when he circumcised the flesh of his foreskin. read more.
Abraham and his son Ishmael [were] circumcised on the same day. And all the men of his house, {those born in the house, and those acquired by money from a foreigner}, were circumcised with him.