kjv@Genesis:25:32 @ And Esau said, Behold, I am at the point to die: and what profit shall this birthright do to me?
kjv@Genesis:25:33 @ And Jacob said, Swear to me this day; and he sware unto him: and he sold his birthright unto Jacob.
kjv@1Chronicles:5:1 @ Now the sons of Reuben the firstborn of Israel, (for he was the firstborn; but, forasmuch as he defiled his father's bed, his birthright was given unto the sons of Joseph the son of Israel: and the genealogy is not to be reckoned after the birthright.
kjv@1Chronicles:5:2 @ For Judah prevailed above his brethren, and of him came the chief ruler; but the birthright was Joseph's:)