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;
Numbers 26:5-7
Reuben, firstborn of Israel; the sons of Reuben: Enoch, of whom was the family of the Enochites; of Pallu, the family of the Palluites;
Numbers 2:10-11
The standard of the camp of Reuben shall be towards the Negev, by their hosts and the prince of the sons of Reuben, Elizur, the son of Shedeur.
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 46:9
And the sons of Reuben: Enoch, Phallu, Hezron, and Carmi.
Genesis 49:3-4
Reuben, thou art my firstborn, my might, and the beginning of my strength, principal in dignity, and the principal in power.
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.