Numbers 1:20
The children of Reuben, Israel's firstborn, their generations, by their families, by their fathers' houses, according to the number of the names, one by one, every male from twenty years old and upward, all who were able to go out to war;
Numbers 26:5-7
Reuben, the firstborn of Israel; the sons of Reuben: [of] Hanoch, the family of the Hanochites; of Pallu, the family of the Palluites;
Numbers 2:10-11
"On the south side shall be the standard of the camp of Reuben according to their divisions. The prince of the children of Reuben shall be Elizur the son of Shedeur.
Genesis 29:32
Leah conceived, and bore a son, and she named him Reuben. For she said, "Because Yahweh has looked at my affliction. For now my husband will love me."
Genesis 46:9
The sons of Reuben: Hanoch, Pallu, Hezron, and Carmi.
Genesis 49:3-4
"Reuben, you are my firstborn, my might, and the beginning of my strength; excelling in dignity, and excelling in power.
1 Chronicles 5:1
The sons of Reuben the firstborn of Israel (for he was the firstborn; but, because he defiled his father's couch, his birthright was given to the sons of Joseph the son of Israel; and the genealogy is not to be reckoned after the birthright.