Numbers 1:20
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;
Numbers 26:5-7
Reuben the eldest son of Israel: the children of Reuben; Hanoch, of whom cometh the family of the Hanochites: Of Phallu, the family of the Phalluites:
Numbers 2:10-11
On the south side shall be the standard of the camp of Reuben according to their armies: and the captain of the children of Reuben shall be Elizur the son of Shedeur.
Genesis 29:32
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.
Genesis 46:9
And the sons of Reuben; Hanoch, and Phallu, and Hezron, and Carmi.
Genesis 49:3-4
Reuben, thou art my first-born, my might, and the beginning of my strength, the excellence of dignity, and the excellence of power:
1 Chronicles 5:1
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.