Parsha Lech Lecha
G‑d seals the Covenant Between the Parts with Abram, in which the exile and persecution (galut) of the people of Israel is foretold, and the Holy Land is bequeathed to them as their eternal heritage.
Still childless ten years after their arrival in the Land, Sarai tells Abram to marry her maidservant Hagar. Hagar conceives, becomes insolent toward her mistress, and then flees when Sarai treats her harshly; an angel convinces her to return, and tells her that her son will father a populous nation. Ishmael is born in Abram’s eighty-sixth year.
Thirteen years later, G‑d changes Abram’s name to Abraham (“father of multitudes”), and Sarai’s to Sarah (“princess”), and promises that a son will be born to them; from this child, whom they should call Isaac (“will laugh”), will stem the great nation with which G‑d will establish His special bond. Abraham is commanded to circumcise himself and his descendants as a “sign of the covenant between Me and you.” Abraham immediately complies, circumcising himself and all the males of his household.
– Eliza J. Badreau