And the sons of Reuben the first-born of Israel (for he was the first-born, but, inasmuch as he defiled his father's couch, his birthright was given to the sons of Joseph the son of Israel, and so the genealogy is not to be reckone
These are the heads of their fathers' houses. The sons of Reuben the first-born of Israel: Hanoch, and Pallu, Hezron, and Carmi, these are the families of Reuben.
And Leah conceived, and bore a son, and she called his name Reuben. For she said, Because LORD has looked upon my affliction, for now my husband will love me.
And the sons of Reuben, Israel's first-born, their generations, by their families, by their fathers' houses, according to the number of the names, by their polls, every male from twenty years old and upward, all who were able to go
And it came to pass, while Israel dwelt in that land, that Reuben went and lay with Bilhah his father's concubine, and Israel heard of it. Now the sons of Jacob were twelve.