And Leah conceived, and bore a son, and she called his name Reuben: for she said, Surely the LORD hath looked upon my affliction; now therefore my husband will love me.
And it came to pass, when Israel dwelt in that land, that Reuben went and lay with Bilhah his father's concubine: and Israel heard it. Now the sons of Jacob were twelve:
Now the sons of Reuben the first-born of Israel, (for he was the first-born; but, forasmuch as he defiled his father's bed, his birth-right was given to the sons of Joseph the son of Israel: and the genealogy is not to be reckoned after the birth-right.
These are the heads of their father's houses: The sons of Reuben the first-born of Israel; Hanoch, and Pallu, Hezron, and Carmi: these are the families of Reuben.
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, by their polls, every male from twenty years old and upward, all that were able to go forth to war;
Take the sum of the people, from twenty years old and upward; as the LORD commanded Moses and the children of Israel, who went forth from the land of Egypt.