Genesis 49:3
Reuben, thou art my firstborn, my might, and the beginning of my strength, principal in dignity, and the principal in power.
Deuteronomy 21:17
but he shall acknowledge the son of the hated as the firstborn by giving him a double portion of all that he has; for he is the beginning of his strength; the right of the firstborn is his.
Genesis 29:32
And Leah conceived and gave birth to a son, and she called his name Reuben; for she said, Surely the LORD has looked upon my affliction; now therefore my husband will love me.
Psalm 78:51
and smote all the firstborn in Egypt, the firstfruits of their strength in the tents of Ham:
Psalm 105:36
He smote also all the firstborn in their land, the chief of all their strength.
Genesis 46:8
And these are the names of the sons of Israel, who came into Egypt, Jacob and his sons: Reuben, Jacob's firstborn.
Genesis 48:18
And Joseph said unto his father, Not so, my father, for this is the firstborn; put thy right hand upon his head.
Numbers 1:20
And the sons of Reuben, the firstborn of Israel, by their generations, after their families, by the houses of their fathers, according to the number of the names, by their polls, every male from twenty years old and upward, all that were able to go forth to war;
Numbers 26:5
Reuben, firstborn of Israel; the sons of Reuben: Enoch, of whom was the family of the Enochites; of Pallu, the family of the Palluites;
1 Chronicles 2:1
These are the sons of Israel: Reuben, Simeon, Levi, Judah, Issachar, Zebulun,
1 Chronicles 5:1
Now the sons of Reuben, the firstborn of Israel, (for he was the firstborn, but because he defiled his father's bed, his birthright was given unto the sons of Joseph, the son of Israel; and he was not counted as the firstborn.
1 Chronicles 5:3
The sons, therefore, of Reuben, the firstborn of Israel, were Enoch, Pallu, Hezron, and Carmi.