And he received the sign of circumcision, a seal of the righteousness of the faith which he had yet being uncircumcised: that he might be the father of all them that believe, though they be not circumcised; that righteousness might be imputed unto them also:
And he gave him the covenant of circumcision: and so Avraham begat Yitzchak, and circumcised him the eighth day; and Yitzchak begat Yaakov; and Yaakov begat the twelve patriarchs.
And David sent messengers to Ishbosheth Saul's son, saying, Deliver me my wife Mikhal, which I espoused to me for an hundred foreskins of the Plishtim.
And when a stranger shall sojourn with thee, and will keep the Passover to YY , let all his males be circumcised, and then let him come near and keep it; and he shall be as one that is born in the land: for no uncircumcised person shall eat thereof.
And Elohim said, This is the token of the covenant which I make between me and you and every living creature that is with you, for perpetual generations: