Genesis 17:12-13
HCSB
Genesis 17:12-13
12 Throughout your generations, every male among you at eight days old is to be circumcised.(A) This includes a slave born in your house and one purchased with money from any foreigner. The one who is not your offspring,
13 a slave born in your house, as well as one purchased with money, must be circumcised. My covenant will be marked in your flesh as an everlasting covenant.