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 5:3

The sons, therefore, of Reuben, the firstborn of Israel, were Enoch, Pallu, Hezron, and Carmi.

Genesis 46:8-9

And these are the names of the sons of Israel, who came into Egypt, Jacob and his sons: Reuben, Jacob's firstborn.

Exodus 6:14

These are the heads of their fathers' families: The sons of Reuben, the firstborn of Israel: Enoch, Pallu, Hezron, and Carmi; these are the families of Reuben.

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.

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.

Genesis 49:2-3

Gather yourselves together and hear, ye sons of Jacob, and hearken unto Israel your father.

Treasury of Scripture Knowledge

Summary

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

General references

Bible References

The eldest

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.
Genesis 49:2
Gather yourselves together and hear, ye sons of Jacob, and hearken unto Israel your father.
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.

General references

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;