Among the tenets most central to the practice of Judaism are kosher religious slaughter (shechita) and circumcision (brit milah). Both are based on our history throughout the millennia and have been codified in Jewish law. The first references to the practice of kashrut, or kosher dietary practices, appear in the biblical book of Deuteronomy. And some 4,000 years ago, Genesis tells us, G-d directed Abraham to be circumcised, creating the founding covenant with the Jewish people.
During times of dispersal, exile, persecution and discrimination—right down to the present—the ability to carry out the biblical injunctions to engage in these practices has served to hold the Jewish community together and has contributed greatly to shaping its collective identity.