Bereshis 25:31-33

Orthodox Jewish Bible

³¹ And Ya’akov said, First sell me today thy bechorah (birthright, right of the firstborn).

³² And Esav said, Hinei, I am at the point of death; and what profit shall this bechorah do to me?

³³ And Ya’akov said, Swear to me this day; and he swore unto him; and he sold his bechorah unto Ya’akov.