Deuteronomy 21:17

He must acknowledge the firstborn, the son of the unloved wife, by giving him two shares of his estate, for he is the firstfruits of his virility; he has the rights of the firstborn.

Genesis 49:3

Reuben, you are my firstborn,
my strength and the firstfruits of my virility,
excelling in prominence, excelling in power.

Genesis 25:31-34

Jacob replied, “First sell me your birthright.”

Genesis 25:5-6

Abraham gave everything he owned to Isaac.

These were the sons of Reuben the firstborn of Israel. He was the firstborn, but his birthright was given to the sons of Joseph son of Israel, because Reuben defiled his father’s bed. He is not listed in the genealogy according to birthright.

Psalm 105:36

He struck all the firstborn in their land,
all their first progeny.

Treasury of Scripture Knowledge

Summary

Deuteronomy 21:17

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.

By giving

Genesis 25:5

1 Chronicles 5:1

The beginning

Genesis 49:3

Psalm 105:36

The right

Genesis 25:31

Bible References

By giving

Abraham gave everything he owned to Isaac.

The beginning

Reuben, you are my firstborn,
my strength and the firstfruits of my virility,
excelling in prominence, excelling in power.

He struck all the firstborn in their land,
all their first progeny.

The right

Jacob replied, “First sell me your birthright.”

Deuteronomy 21:17