Gênesis 17:12

12 For the generations to come every male among you who is eight days old must be circumcised, including those born in your household or bought with money from a foreigner - those who are not your offspring.

12 Every male among you, from one generation to another, is to undergo circumcision when he is eight days old, with every servant whose birth takes place in your house, or for whom you gave money to someone of another country, and not of your seed.