On the day of feasting during which Abraham celebrated the weaning of Isaac, Ishmael was "mocking" or "playing with" Isaac (the Hebrew word , is ambiguous) and Sarah asked Abraham to expel Ishmael and his mother, saying: "Get rid of that slave woman and her son, for that slave woman's son will never share in the inheritance with my son Isaac." Her demand was painful for Abraham, who loved Ishmael. Abraham agreed only after God told him that "in Isaac your seed shall be called", and that God would "make a nation of the son of the bondwoman" Ishmael, since he was a descendant of Abraham (), God having previously told Abraham "I will establish My covenant with ", while also making promises concerning the Ishmaelite nation ().