Genesis 17:11-13

Christian Standard Bible

¹¹ You must circumcise the flesh of your foreskin to serve as a sign of the covenant between me and you.^{[a](A) 12} Throughout your generations, every male among you is to be circumcised^(B) at eight days old—every male born in your household or purchased from any foreigner and not your offspring. ¹³ Whether born in your household or purchased, he must be circumcised. My covenant will be marked in your flesh as a permanent covenant.