Birthright is a moral right possessed by everyone- birthright can be explained as your inarguable, noncontroversial right and power conferred on you at birth. You don’t have to do anything to get it. Birthright is your natural endowment- your natural blessing.
“27 The boys grew up, and Esau became a skilful hunter, a man of the open country, while Jacob was content to stay at home among the tents.28 Isaac, who had a taste for wild game, loved Esau, but Rebekah loved Jacob.
29 Once when Jacob was cooking some stew, Esau came in from the open country,