Cross References → Genesis 25:32

And Esau said, Behold, I am at the point to die: and what profit shall this birthright do to me?

and what

Job 21:15
What is the Almighty, that we should serve him? and what profit should we have, if we pray unto him?
Job 22:17
Which said unto God, Depart from us: and what can the Almighty do for them?
Job 34:9
For he hath said, It profiteth a man nothing that he should delight himself with God.
Malachi 3:14
Ye have said, It is vain to serve God: and what profit is it that we have kept his ordinance, and that we have walked mournfully before the LORD of hosts?

birthright

Deuteronomy 21:15-17
If a man have two wives, one beloved, and another hated, and they have born him children, both the beloved and the hated; and if the firstborn son be hers that was hated: Then it shall be, when he maketh his sons to inherit that which he hath, that he may not make the son of the beloved firstborn before the son of the hated, which is indeed the firstborn: But he shall acknowledge the son of the hated for the firstborn, by giving him a double portion of all that he hath: for he is the beginning of his strength; the right of the firstborn is his.