Genesis 49:3

Reuben, you are my firstborn, my might, and the beginning of my strength, the excellency of dignity, and the excellency of 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 bore 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 struck down all the firstborn in Egypt; the chief of their strength in the tabernacles of Ham:

Psalm 105:36

He struck also all the firstborn in their land, the first of all their strength.

Genesis 46:8

And these are the names of the children 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 your right hand upon his head.

Numbers 1:20

And the children of Reuben, Israel's eldest son, by their generations, after their families, by the house of their fathers, according to the number of the names, individually, every male from twenty years old and upward, all that were able to go forth to war;

Numbers 26:5

Reuben, the eldest son of Israel: the children of Reuben; Hanoch, of the family of the Hanochites: of Pallu, the family of the Palluites:

1 Chronicles 2:1

These are the sons of Israel; Reuben, Simeon, Levi, and Judah, Issachar, and Zebulun,

1 Chronicles 5:1

Now the sons of Reuben the firstborn of Israel, (for he was the firstborn; but, since he defiled his father's bed, his birthright was given unto the sons of Joseph the son of Israel: and the genealogy is not to be recorded according to the birthright.

1 Chronicles 5:3

The sons, I say, of Reuben the firstborn of Israel were, Hanoch, and Pallu, Hezron, and Carmi.

Treasury of Scripture Knowledge

Summary

Reuben, thou art my firstborn, my might, and the beginning of my strength, the excellency of dignity, and the excellency of power:

General references

Bible References

My firstborn

Genesis 29:32
And Leah conceived, and bore 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.
Genesis 46:8
And these are the names of the children 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 your right hand upon his head.
Numbers 1:20
And the children of Reuben, Israel's eldest son, by their generations, after their families, by the house of their fathers, according to the number of the names, individually, every male from twenty years old and upward, all that were able to go forth to war;
Numbers 26:5
Reuben, the eldest son of Israel: the children of Reuben; Hanoch, of the family of the Hanochites: of Pallu, the family of the Palluites:
1 Chronicles 2:1
These are the sons of Israel; Reuben, Simeon, Levi, and Judah, Issachar, and Zebulun,
1 Chronicles 5:1
Now the sons of Reuben the firstborn of Israel, (for he was the firstborn; but, since he defiled his father's bed, his birthright was given unto the sons of Joseph the son of Israel: and the genealogy is not to be recorded according to the birthright.

My might

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.
Psalm 78:51
And struck down all the firstborn in Egypt; the chief of their strength in the tabernacles of Ham:
Psalm 105:36
He struck also all the firstborn in their land, the first of all their strength.

General references

Numbers 1:20
And the children of Reuben, Israel's eldest son, by their generations, after their families, by the house of their fathers, according to the number of the names, individually, every male from twenty years old and upward, all that were able to go forth to war;
Deuteronomy 33:6
Let Reuben live, and not die; and let not his men be few.