Deuteronomy 21:17
but he shall acknowledge as firstborn the son of the hated, by giving him a double portion of all that is found with him; for he is the firstfruits of his vigour: the right of the firstborn is his.
Genesis 49:3
Reuben, thou art my firstborn, My might, and the firstfruits of my vigour: Excellency of dignity, and excellency of strength.
Genesis 25:31-34
And Jacob said, Sell me now thy birthright.
Genesis 25:5-6
And Abraham gave all that he had to Isaac.
1 Chronicles 5:1-2
And the sons of Reuben the firstborn of Israel (for he was the firstborn; but, inasmuch as he defiled his father's bed, his birthright was given to the sons of Joseph the son of Israel; but the genealogy is not registered according to the birthright,
Psalm 105:36
And he smote every firstborn in their land, the firstfruits of all their vigour.