The brit milah (Hebrew: בְּרִית מִילָה, Modern Israeli: [bʁit miˈla], Ashkenazi: [bʁis ˈmilə]; "covenant of circumcision"), or bris (Yiddish: ברית, Yiddish: [bʁɪs]), is the ceremony of circumcision in Judaism and Samaritanism during which a newborn male's foreskin is surgically removed. According to the Book of Genesis, God commanded the biblical patriarch Abraham to be circumcised: an act to be followed by his descendants on the eighth day of life symbolizing the covenant between God and the Jewish people. Today, it is generally performed by a mohel on the eighth day after the infant's birth and is followed by a celebratory meal known as a seudat mitzvah.
Brit milah is considered among the most important and central commandments in Judaism, and the rite has played a central role in Jewish history and civilization. The Talmud, when discussing the importance of brit milah, considers it equal to all other mitzvot (commandments). Abraham's descendants who voluntarily fail to undergo brit milah, barring extraordinary circumstances, are believed to suffer Kareth, which, in Jewish theology, the extinction of the soul and denial of a share in the World to Come. The brit is understood by Jews to signify acceptance into the ongoing covenant between God and the Jewish people, which is why gerim undergo a form of brit to finalize conversion.
