¹⁰ This is my covenant, which ye shall keep, between me and you and thy seed after thee; Every man child among you shall be circumcised.

¹² And he that is eight days old shall be circumcised among you, every man child in your generations, he that is born in the house, or bought with money of any stranger, which is not of thy seed.

⁸ And he gave him the covenant of circumcision: and so Abraham begat Isaac, and circumcised him the eighth day; and Isaac begat Jacob; and Jacob begat the twelve patriarchs.