Inheritance Rights of the Firstborn
"If a man has two wives, one loved k and the other unloved, and they have borne him children, both the loved and the unloved, and if the firstborn son is of her who is unloved,
"then it shall be, l on the day he bequeaths his possessions to his sons, that he must not bestow firstborn status on the son of the loved wife in preference to the son of the unloved, the true firstborn.
"But he shall acknowledge the son of the unloved wife as the firstborn m by giving him a double portion of all that he has, for he n is the beginning of his strength; o the right of the firstborn is his.
New King James Version (NKJV) Copyright © 1982 by Thomas Nelson, Inc.
Then she conceived again and bore a son, and said, "Because the LORD has heard that I am unloved, He has therefore given me this son also." And she called his name Simeon.
1 Chronicles 5:2
Yet Judah prevailed over his brothers, and from him came a ruler, although the birthright was Joseph's -
1 Chronicles 26:10
Also Hosah, of the children of Merari, had sons: Shimri the first (for though he was not the firstborn, his father made him the first).
2 Kings 2:9
And so it was, when they had crossed over, that Elijah said to Elisha, "Ask! What may I do for you, before I am taken away from you?" Elisha said, "Please let a double portion of your spirit be upon me.
Reuben, you are my firstborn, My might and the beginning of my strength, The excellency of dignity and the excellency of power.
But Jacob said, "Sell me your birthright as of this day.
Then Jacob said, "Swear to me as of this day." So he swore to him, and sold his birthright to Jacob.